Igor Sklyarevski, 36, gives information signs to volunteers at an information centre in pro-European protesters camp at Independence Square in Kiev, December 12, 2013. By day, Skliarevsky works as a graphic designer. By night, he mans the barricades at anti-government protests in the heart of Ukraine's snowbound capital. The 36-year-old has taken part in the protests on Kiev's Independence Square almost every evening or night since waking on Nov. 30 to the news that police had beaten young protesters with batons and used stun grenades against them. Picture taken December 12, 2013. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SOCIETY) 

Igor Skliarevsky, 36, works on a computer at his home in Kiev, December 12, 2013. By day, Skliarevsky works as a graphic designer. By night, he mans the barricades at anti-government protests in the heart of Ukraine's snowbound capital. Skliarevsky has taken part in the protests on Kiev's Independence Square almost every evening or night since waking on November 30 to the news that police had beaten young protesters with batons and used stun grenades against them. Picture taken December 12, 2013. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SOCIETY) 

Orange County District Attorney Tony Rackauckas wields a police baton, demonstrating how he believes Fullerton police officer Manuel Ramos threatened Kelly Thomas during his opening statements in the People v. Ramos and Cicinelli trial at Orange County Superior Court in Santa Ana, California, December 2, 2013. The trial of two former California policemen charged in the beating and stun gun death of a mentally ill transient began on Monday with opening statements about the deadly confrontation that touched off protests and political upheaval in a Los Angeles suburb. REUTERS/Bruce Chambers/Pool (UNITED STATES - Tags: CRIME LAW) 

Protesters warm themselves near a fire burning in a steel drum in front of Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Protesters warm themselves near a fire burning in a steel drum in front of Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

Protesters warm themselves near a fire burning in a steel drum in front of Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

Protesters rest in front of Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

Protesters rest in front of Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

Protesters providing medical assistance are seen at the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION TPX IMAGES OF THE DAY) 

Protesters warm themselves near a fire burning in a steel drum in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

Protesters rest in the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev, early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

Protesters rest in the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev, early December 1, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A protester waves an European Union flag from the top of a moving car in Kiev, November 30, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A protester waves a Ukranian flag from a moving car in Kiev, November 30, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Protesters put candles in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev, November 30, 2013. Ukraine's political opposition said on Saturday it would call a general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. Some 10,000 protesters regrouped in Kiev, flooding a square outside a church. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

A protester supporting EU integration shouts slogans wrapped in a EU flag during a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Protesters practise tactics to defend themselves from possible police scuffles as they participate in a rally supporting EU integration in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Protesters practise tactics to defend themselves from possible police scuffles as they participate in a rally supporting EU integration in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Protesters practise tactics to defend themselves from possible police scuffles as they participate in a rally supporting EU integration in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Protesters practise tactics to defend themselves from possible police scuffles as they participate in a rally supporting EU integration in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Valentyn Ogirenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A general view shows the square in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) during a rally supporting EU integration in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Valentyn Ogirenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A protester supporting EU integration carries an EU flag as he passes a Ukrainian one during a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's golden-domed cathedral) in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Oleg Tyagnibok (centre R), head of the All-Ukrainian Union Svoboda (Freedom) Party, and Vitaly Klitschko (centre L), heavyweight boxing champion and UDAR (Punch) party leader, address people supporting EU integration during a rally in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SPORT BOXING) 

Vitaly Klitschko, heavyweight boxing champion and UDAR (Punch) party leader, addresses people supporting EU integration during a rally in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SPORT BOXING) 

People supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Oleg Tyagnibok (centre R), head of the All-Ukrainian Union Svoboda (Freedom) Party, and Vitaly Klitschko (centre L), heavyweight boxing champion and UDAR (Punch) party leader, address people supporting EU integration at the bottom of the monument to Grand Princess Olga during a rally in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SPORT BOXING) 

People supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Oleg Tyagnibok (R), head of the All-Ukrainian Union Svoboda (Freedom) Party, Vitaly Klitschko (L), heavyweight boxing champion and UDAR (Punch) party leader, and Arseny Yatsenyuk (C), a Ukrainian opposition leader, address people supporting EU integration during a rally in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SPORT BOXING) 

Opposition leaders (C) address people supporting EU integration at the foot of the monument to Grand Princess Olga during a rally in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Vitaly Klitschko (front), heavyweight boxing champion and UDAR (Punch) party leader, addresses supporters of EU integration during a rally in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SPORT BOXING) 

Oleg Tyagnibok (R), head of the All-Ukrainian Union Svoboda (Freedom) Party, and Vitaly Klitschko (L), heavyweight boxing champion and UDAR (Punch) party leader, address supporters of EU integration during a rally in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST SPORT BOXING) 

A man gestures as people supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A man shouts slogans during a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People attach an EU flag to a monument during a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People attach an EU flag to a monument during a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A man hits a police bus with a stick during a rally held by supporters of EU integration in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A man hits a police bus with a stick during a rally held by supporters of EU integration in Kiev November 30, 2013. Ukraine's political opposition on Saturday said it would call a country-wide general strike to force the resignation of President Viktor Yanukovich's government after police used batons and stun grenades to break up pro-Europe protests. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People try to help a man, who was injured during a scuffle at a demonstration in support of EU integration, as he speaks with media during a rally in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A man, injured during a scuffle at a demonstration in support of EU integration, attends a rally in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A man, injured during a scuffle at a demonstration in support of EU integration, speaks with media during a rally in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People supporting EU integration hold a rally in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People supporting EU integration hold a rally in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People supporting EU integration hold a rally in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People attempt to block a police bus during a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People attack a police bus during a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A man kicks a police bus during a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

A man kicks a police bus during a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Newly weds share a kiss as they attend a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Newly weds attend a rally held by supporters of EU integration in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST) 

People supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

People supporting EU integration hold a rally in front of the Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) in Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION) 

People supporting EU integration argue with riot police in Independence Square in central Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Inna Sokolovska (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Riot police (back) gather to disperse people supporting EU integration in Independence Square in central Kiev, November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. REUTERS/Inna Sokolovska (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Workers clean up Independence Square guarded by riot police in Kiev November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. Helmeted police bearing white shields, stormed an encampment of protesters in Kiev's Independence Square, as they sang songs and warmed themselves by campfires, the opposition said. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Protesters wave a Ukranian flag and gesture in front of riot police near Independence Square in Kiev November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. Helmeted police bearing white shields, stormed an encampment of protesters in Kiev's Independence Square, as they sang songs and warmed themselves by campfires, the opposition said. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Ukranian police stand guard in front of Independence Square in Kiev November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. Helmeted police bearing white shields, stormed an encampment of protesters in Kiev's Independence Square, as they sang songs and warmed themselves by campfires, the opposition said. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST) 

Ukranian police stand guard behind a security fence surrounding Independence Square in Kiev November 30, 2013. Ukrainian riot police used batons and stun grenades to disperse hundreds of pro-Europe protesters early on Saturday after President Viktor Yanukovich opted not to sign a pact with the European Union. Helmeted police bearing white shields, stormed an encampment of protesters in Kiev's Independence Square, as they sang songs and warmed themselves by campfires, the opposition said. REUTERS/Stoyan Nenov (UKRAINE - Tags: POLITICS CIVIL UNREST RELIGION)