Bulgarian Muslims charged with preaching radical Islam are seen before the start of their trial at a court in Pazardzhik, Bulgaria February 25, 2016. Fourteen Bulgarians have been charged with propagating an extremist religious ideology and incitement to war, prosecutors office said, after investigations last year into suspected sympathizers of the Islamic State group. REUTERS/Stoyan Nenov

Bulgarian Muslims charged with preaching radical Islam are seen before the start of their trial at a court in Pazardzhik, Bulgaria February 25, 2016. Fourteen Bulgarians have been charged with propagating an extremist religious ideology and incitement to war, prosecutors office said, after investigations last year into suspected sympathizers of the Islamic State group. REUTERS/Stoyan Nenov TPX IMAGES OF THE DAY

Policemen stand guard as a plainclothes policeman is seen inside a house in a Roma neighbourhood in the city of Pazadzhik November 25, 2014. The Bulgarian State Prosecutor's office, the State Agency for National Security and the Interior Ministry conducted a specialised operation on Tuesday in five Bulgarian cities seizing evidence as part of a pre-trial proceedings for crimes against the state, anti-democracy ideology and war propaganda, the prosecutors office said in a statement. More than five men were taken for questioning in this neighbourhood, and in other areas around hundred people were detained during the operation, local media reported. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW)

A man walks in front of a police truck in a Roma neighbourhood in the city of Pazadzhik November 25, 2014. The Bulgarian State Prosecutor's office, the State Agency for National Security and the Interior Ministry conducted a specialised operation on Tuesday in five Bulgarian cities seizing evidence as part of a pre-trial proceedings for crimes against the state, anti-democracy ideology and war propaganda, the prosecutors office said in a statement. More than five men were taken for questioning in this neighbourhood, and in other areas around hundred people were detained during the operation, local media reported. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW)

Women gather near a house during a specialised operation in a Roma neighbourhood in the city of Pazadzhik November 25, 2014. The Bulgarian State Prosecutor's office, the State Agency for National Security and the Interior Ministry conducted a specialised operation on Tuesday in five Bulgarian cities seizing evidence as part of a pre-trial proceedings for crimes against the state, anti-democracy ideology and war propaganda, the prosecutors office said in a statement. More than five men were taken for questioning in this neighbourhood, and in other areas around hundred people were detained during the operation, local media reported. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW)

A policeman stands guard outside of a house as women chat in a Roma neighbourhood in the city of Pazadzhik November 25, 2014. The Bulgarian State Prosecutor's office, the State Agency for National Security and the Interior Ministry conducted a specialised operation on Tuesday in five Bulgarian cities seizing evidence as part of a pre-trial proceedings for crimes against the state, anti-democracy ideology and war propaganda, the prosecutors office said in a statement. More than five men were taken for questioning in this neighbourhood, and in other areas around hundred people were detained during the operation, local media reported. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Policemen stand guard outside of a house as a woman looks on in a Roma neighbourhood in the city of Pazadzhik November 25, 2014. The Bulgarian State Prosecutor's office, the State Agency for National Security and the Interior Ministry conducted a specialised operation on Tuesday in five Bulgarian cities seizing evidence as part of a pre-trial proceedings for crimes against the state, anti-democracy ideology and war propaganda, the prosecutors office said in a statement. More than five men were taken for questioning in this neighbourhood, and in other areas around hundred people were detained during the operation, local media reported. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Plainclothes policemen walk outside of a house in a Roma neighbourhood in the city of Pazadzhik November 25, 2014. The Bulgarian State Prosecutor's office, the State Agency for National Security and the Interior Ministry conducted a specialised operation on Tuesday in five Bulgarian cities seizing evidence as part of a pre-trial proceedings for crimes against the state, anti-democracy ideology and war propaganda, the prosecutors office said in a statement. More than five men were taken for questioning in this neighbourhood, and in other areas around hundred people were detained during the operation, local media reported. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW)

Muslim women walk past policemen outside of a house in a Roma neighbourhood in the city of Pazadzhik November 25, 2014. The Bulgarian State Prosecutor's office, the State Agency for National Security and the Interior Ministry conducted a specialised operation on Tuesday in five Bulgarian cities seizing evidence as part of a pre-trial proceedings for crimes against the state, anti-democracy ideology and war propaganda, the prosecutors office said in a statement. More than five men were taken for questioning in this neighbourhood, and in other areas around hundred people were detained during the operation, local media reported. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Bulgarian imam Hairi Sherifov looks on before the start of his trial in the city court in Pazardzhik, some 110 km (68 miles) east of Sofia, December 17, 2012. Thirteen Bulgarian imams are standing trial on charges of belonging to an unregistered branch of Islamic foundation Al Waqf-Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Bulgarian imams are seen before the start of their trial in the city court in Pazardzhik, some 110 km (68 miles) east of Sofia, December 17, 2012. Thirteen Bulgarian imams are standing trial on charges of belonging to an unregistered branch of Islamic foundation Al Waqf-Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

An imam talks to the media before the start of a trial at the city court in Pazardzhik, some 110km (68 miles) east of Sofia, November 28, 2012. Thirteen Bulgarian imams stand trial on charges of belonging to an unregistered branch of the Islamic foundation Al Waqf-Al Islami, which is believed to preach the implementation of sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION MEDIA)

An imam sits before the start of a trial at the city court in Pazardzhik, some 110km (68 miles) east of Sofia, November 28, 2012. Thirteen Bulgarian imams stand trial on charges of belonging to an unregistered branch of the Islamic foundation Al Waqf-Al Islami, which is believed to preach the implementation of sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Imams sit before the start of their trial at the city court in Pazardzhik, some 110km (68 miles) east of Sofia, November 28, 2012. Thirteen Bulgarian imams stand trial on charges of belonging to an unregistered branch of the Islamic foundation Al Waqf-Al Islami, which is believed to preach the implementation of sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Volen Siderov, leader of Bulgaria's nationalist Attack Party delivers a speech to supporters during a protest in front of the court in Pazardzhik, some 110 km (68 miles) east of Sofia, October 29, 2012. Several hundred Bulgarian nationalists rallied on Monday in the southern town of Pazardzhik to show support for the court presiding over a trial against thirteen Bulgarian imams accused by prosecutors of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. The banner reads, "Bulgarian patriots - united against the islamic threat." REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION CIVIL UNREST POLITICS)

Supporters of Bulgarian nationalist organisations shout slogans during a protest in front of the court in Pazardzhik, some 110 km (68 miles) east of Sofia, October 29, 2012. Several hundred Bulgarian nationalists rallied on Monday in the southern town of Pazardzhik to show support for the court presiding over a trial against thirteen Bulgarian imams accused by prosecutors of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

A supporter of a Bulgarian nationalist organisation holds a banner during a protest in front of the court in Pazardzhik, some 110 km (68 miles) east of Sofia, October 29, 2012. Several hundred Bulgarian nationalists rallied on Monday in the southern town of Pazardzhik to show support for the court presiding over a trial against thirteen Bulgarian imams accused by prosecutors of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION CIVIL UNREST POLITICS)

Bulgarian imams greet each other before the start of their trial in the city court in Pazardzhik, some 110 km (68 miles) east of Sofia, October 29, 2012. Several hundred Bulgarian nationalists rallied on Monday in the southern town of Pazardzhik to show support for the court presiding over a trial against thirteen Bulgarian imams accused by prosecutors of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION CIVIL UNREST POLITICS)

A Bulgarian imam is seen before the start of a trial in the city court in Pazardzhik, some 110 km (68 miles) east of Sofia, October 29, 2012. Several hundred Bulgarian nationalists rallied on Monday in the southern town of Pazardzhik to show support for the court presiding over a trial against thirteen Bulgarian imams accused by prosecutors of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION CIVIL UNREST)

Bulgarian imams are seen before the start of their trial in the city court in Pazardzhik, some 110 km (68 miles) east of Sofia, October 29, 2012. Several hundred Bulgarian nationalists rallied on Monday in the southern town of Pazardzhik to show support for the court presiding over a trial against thirteen Bulgarian imams accused by prosecutors of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION CIVIL UNREST)

Bulgarian imams are seen before the start of their trial in the city court in Pazardzhik, some 110 km (68 miles) east of Sofia, September 18, 2012. Thirteen Bulgarian imams stand trial on charges of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country, the prosecutor's office said. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

A Muslim woman reacts outside the court in Pazardzhik, some 110km (68 miles) east of Sofia, during the start of the trial of Bulgarian imams September 18, 2012. Thirteen Bulgarian imams stand trial on charges of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country, the prosecutor's office said. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Bulgarian imams are seen before the start of their trial in the city court in Pazardzhik, some 110km (68 miles) east of Sofia, September 18, 2012. Thirteen Bulgarian imams stand trial on charges of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country, the prosecutor's office said. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

A lawyer (L) talks to Bulgarian imams before the start of their trial in the city court in Pazardzhik, some 110 km (68 miles) east of Sofia, September 18, 2012. Thirteen Bulgarian imams stand trial on charges of belonging to an unregistered branch of Islamic foundation Al Waqf Al Islami which is believed to preach the implementation of Sharia law in the Balkan country, the prosecutor's office said. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

Bulgarian imams are seen before the start of their trial in the city court in Pazardzhik, some 110km (68miles) east of Sofia, September 18, 2012. Thirteen Bulgarian imams are standing trial on charges of belonging to an unregistered branch of Islamic foundation Al Waqf-Al Islami which is believed to preach the implementation of Sharia law in the Balkan country, the prosecutor's office said. REUTERS/Stoyan Nenov (BULGARIA - Tags: CRIME LAW RELIGION)

A boy cools off in a pond during a heatwave near the town of Pazardzhik, about 110 km (68 miles) east of Sofia, August 15, 2008. REUTERS/Stoyan Nenov (BULGARIA)

Boys jump into the waters of a pond near the town of Pazardzhik, some 110 km (68 miles) from the capital Sofia to cool off during a heatwave June 23, 2007. Temperatures in the Balkan country are estimated to top 40 degrees Celsius (104 degrees Fahrenheit) today. REUTERS/Nikolay Doychinov (BULGARIA)

A man bathes in the waters of a pond during a heatwave near the town of Pazardzhik, some 110 km (68 miles) from the capital Sofia to cool off during a heatwave June 23, 2007. Temperatures in the Balkan country are estimated to top 40 degrees Celsius (104 degrees Fahrenheit) today. REUTERS/Nikolay Doychinov (BULGARIA)

Boys jump into the waters of a pond near the town of Pazardzhik, some 110 km (68 miles) from the capital Sofia to cool off during a heatwave June 23, 2007. Temperatures in the Balkan country are estimated to top 40 degrees Celsius (104 degrees Fahrenheit) today. REUTERS/Nikolay Doychinov (BULGARIA)

A man tries to make his way through a flooded yard in the village of Gelemenovo, some 90 km (56 miles) south east of Bulgarian capital Sofia, June 6, 2007. Some 30 people have been evacuated in a village in Bulgaria, where more than 100 litres per square metre of rain have fallen in the past 24 hours. REUTERS/Nikolay Doychinov (BULGARIA)

A Bulgarian man tries to make his way through a flooded yard in the village of Gelemenovo, some 90 km (56 miesl) south east of Bulgarian capital Sofia, June 6, 2007. Some 30 people have been evacuated in a village in Bulgaria, where more than 100 litres per square metre of rain have fallen in the past 24 hours. REUTERS/Nikolay Doychinov (BULGARIA)

A Bulgarian Roma participates during an anti-discrimination rally in the center of town of Pazardzhik, October 18, 2006. Hundreds of Roma rallied to protest against what they call police brutality after police broke up a brawl that erupted in a Roma neighborhood in the town of Pazardzhik last week. REUTERS/Nikolay Doychinov (BULGARIA)

Bulgarian Roma shout slogans during an anti-discrimination rally in the center of town of Pazardzhik, October 18, 2006. Hundreds of Roma rallied to protest against what they call police brutality after police broke up a brawl that erupted in a Roma neighborhood in the town of Pazardzhik last week. REUTERS/Nikolay Doychinov (BULGARIA)

A Bulgarian woman of Gypsy origin casts her vote in a second round of local polls in the city of Pazardzhik, some 100 km sotheast of Sofia on October 23. The polls have turned into a battle between the reformist UDF party which holds majority in parliament and its ex-communist opponents.

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