Protesters sit in front of police after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

Protesters in front of police after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

A protester stands in front of police after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

Police runs after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

A party goer flashes a victory sign towards German riot police and a water cannon after German police was ordered to disperse a peaceful street party of possible anti-G20 demonstrators in the Schanze district of Hamburg, July 8, 2017. REUTERS/Kai Pfaffenbach

German riot police rush into a peaceful street party in the Schanze district to disperse possible anti-G20 demonstrators in Hamburg, July 8, 2017. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Protester holds a placard reading "Warning - Police line - Attention - risk of injury" in front of police near the Rote Flora after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police secures the area after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police secures the area after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police secures the Rote Flora area after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police runs in front of the Rote Flora after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Fabian Bimmer

Police uses water cannon in front of the Rote Flora after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Fabian Bimmer

Police secures the area in front of the Rote Flora after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police secures the area in front of the Rote Flora after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police secures the area in front of the Rote Flora after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

People talk to police after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police secures the area after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

Police secures the area after anti G20 demonstrations in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

German special police forces officer walks through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces detain a man in the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces officer walks through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

German special police forces look on at the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach

German special police forces walk through the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

German special police forces enter a house in the Schanze district following clashes with anti G20-protesters in Hamburg, Germany, July 8, 2017. REUTERS/Hannibal Hanschke

An artist draws a picture of the G7 summit participants standing outside Elmau castle and cordoned by police, in the anti-G7 tent camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Wolfgang Rattay

A sign is pictured at the anti-G7 tent camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. The text reads: 'Please, no access to media. Police, please register here. Your requests will be taken care of here.' REUTERS/Wolfgang Rattay

An artist draws a picture of the G7 summit participants standing outside Elmau castle and cordoned by police, in the anti-G7 tent camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Wolfgang Rattay

Anti-G7 protestors leave their camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Wolfgang Rattay

Anti-G7 protestors leave their camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Wolfgang Rattay

Anti-G7 protestors pack up their tents in a camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Wolfgang Rattay

Anti-G7 protestors leave their camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Wolfgang Rattay

Anti-G7 protestors pack up their tents in a camp on the field near the Loisach river in the outskirts of Garmisch-Partenkirchen, Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Wolfgang Rattay

Police watch anti-G7 protestors in Garmisch-Partenkirchen, southern Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Michael Dalder

Police watch anti-G7 protestors in Garmisch-Partenkirchen, southern Germany, June 8, 2015. Leaders of the Group of Seven (G7) industrial nations vowed at a summit in the Bavarian Alps on Sunday to keep sanctions against Russia in place until President Vladimir Putin and Moscow-backed separatists fully implement the terms of a peace deal for Ukraine. REUTERS/Michael Dalder

Substantive Federal Public Prosecutor Horst Salzmann gives interviews before a trial against four men charged with planning attacks on far-right anti-Muslim political party Pro-NRW, at the higher regional court in Duesseldorf September 8, 2014. A German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Substantive Federal Public Prosecutor Horst Salzmann gives interviews before a trial against four men charged with planning attacks on far-right anti-Muslim political party Pro-NRW, at the higher regional court in Duesseldorf September 8, 2014. A German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Police officers are seen outside the regional court where the trial of four men charged with planning attacks on far-right anti-Muslim political party Pro-NRW is being held, in Duesseldorf September 8, 2014. A German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Judge Frank Schreiber (C), speaks with lawyers at the higher regional court where four men are charged with planning attacks on a far-right anti-Muslim political party Pro-NRW, in Duesseldorf September 8, 2014. A German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

An empty court room of the higher regional court, where the trial of four men charged with planning attacks on far-right anti-Muslim political party Pro-NRW is being held, in Duesseldorf September 8, 2014. A German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Police officers are seen outside the regional court, where the trial of four men charged with planning attacks on far-right anti-Muslim political party Pro-NRW is being held, in Duesseldorf September 8, 2014. A German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Defendant (R) identified as Enea B. is seen in the courtroom at the higher regional court in Duesseldorf September 8, 2014. Enea B. is one of four men charged with planning attacks on a far-right anti-Muslim political party Pro-NRW. One of the accomplices, a German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY TPX IMAGES OF THE DAY)

Defendant identified as Enea B. arrives at the courtroom at the higher regional court in Duesseldorf September 8, 2014. Enea B. is one of four men charged with planning attacks on a far-right anti-Muslim political party Pro-NRW. One of the accomplices, a German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Defendant (C) identified as Marco G. sits between security officers at the higher regional court in Duesseldorf September 8, 2014. Marco G. is one of four men charged with planning attacks on a far-right anti-Muslim political party Pro-NRW. Marco G., a German man described as a radical Islamist was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Defendant (R) identified as Enea B. gestures in the courtroom at the higher regional court in Duesseldorf September 8, 2014. Enea B. is one of four men charged with planning attacks on a far-right anti-Muslim political party Pro-NRW. One of the accomplices, a German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Defendant (R) identified as Enea B. arrives at the courtroom at the higher regional court in Duesseldorf September 8, 2014. Enea B. is one of four men charged with planning attacks on a far-right anti-Muslim political party Pro-NRW. One of the accomplices, a German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

A defendant identified as Koray D. (C) speaks with his lawyer Boris Kroesing (2nd R) at at the higher regional court in Duesseldorf September 8, 2014. Koray D. is one of four men charged with planning attacks on a far-right anti-Muslim political party Pro-NRW. One of the accomplices, a German man described as a radical Islamist and named only as Marco G., was charged earlier this year with planting a pipe bomb in Bonn train station in 2012 and intending to kill as many people as possible. The bomb did not explode. Marco G., was also charged with planning to assassinate the leader of Pro-NRW, with three accomplices, a 43-year-old Albanian man, a 25-year-old German-Turkish citizen, and a 24-year-old German. REUTERS/Ina Fassbender (GERMANY - Tags: CRIME LAW RELIGION POLITICS SOCIETY)

Oxfam's activists wear masks depicting leaders of some countries members of the G7, (L-R) U.S. President Barack Obama, German Chancellor Angela Merkel and Canadian Prime Minister Stephen Harper during a protest called "Energy dependency and wealth inquality" outside the European Council in Brussels June 3, 2014. Leaders of the Group of Seven nations, meeting without Russia, agreed to hold their own summit this year in Brussels instead of attending a planned G8 meeting in the Russian Olympic venue of Sochi, following tensions between Ukraine and Russia. REUTERS/Yves Herman (BELGIUM - Tags: CIVIL UNREST POLITICS SOCIETY)

Oxfam activists depicting Russia's President Vladimir Putin (L), Japan's Prime Minister Shinzo Abe and U.S. President Barack Obama take part in a media event to highlight world hunger during the G8 summit, at Enniskillen Golf Course in Enniskillen, Northern Ireland June 18, 2013. REUTERS/Cathal McNaughton (NORTHERN IRELAND - Tags: POLITICS)

An anti-G8 protestor walks alongside razor wire before protestors broke through the security fence surrounding the G8 Summit in the Lough Erne Golf Resort in County Fermanagh June 17, 2013. REUTERS/Cathal McNaughton (NORTHERN IRELAND - Tags: POLITICS BUSINESS CIVIL UNREST)

Anti-G8 protestors break through the security fence surrounding the G8 Summit in the Lough Erne Golf Resort in County Fermanagh June 17, 2013. REUTERS/Cathal McNaughton (NORTHERN IRELAND - Tags: POLITICS BUSINESS CIVIL UNREST)