A man, who is accused by pro-Russia protesters of being a "provokator", stands outside the district council building in Donetsk
A man (C), who is accused by pro-Russia protesters of being a "provokator", stands outside the district council building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)
Pro-Russia protesters climb with a Donbass flag at the military prosecutor's office building in Donetsk
Pro-Russia protesters climb with a Donbass flag at the military prosecutor's office building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/ (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russia protester waves Donbass flag from the top of the district council building in Donetsk
A pro-Russia protester waves a Donbass flag from the top of the district council building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russia protesters wave Donbass flag from the military prosecutor's office building in Donetsk
REFILE - ADDING BYLINE Pro-Russia protesters wave a Donbass flag from the military prosecutor's office building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russia protesters wave Donbass flag from the military prosecutor's office building in Donetsk
Pro-Russia protesters wave a Donbass flag from the military prosecutor's office building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/ (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russia protesters stand guard at the entrance of the district council building in Donetsk
Pro-Russia protesters stand guard at the entrance of the district council building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
Ukranian flag falls after it was thrown by pro-Russia protesters from the top of the district council building in Donetsk
A Ukranian flag falls after it was thrown by pro-Russia protesters from the top of the district council building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
Man, who is accused by pro-Russia protesters of being a "provokator", reacts outside the district council building in Donetsk
A man, who is accused by pro-Russia protesters of being a "provokator", reacts outside the district council building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russia protesters burn a Ukranian flag outside the district council building in Donetsk
Pro-Russia protesters burn a Ukranian flag outside the district council building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
Man, who is accused by pro-Russia protesters being a "provokator", stands outside the district council building in Donetsk
A man (C), who is accused by pro-Russia protesters being a "provokator", stands outside the district council building in Donetsk, eastern Ukraine May 4, 2014. Ukrainian Prime Minister Arseny Yatseniuk accused Russia on Sunday of engineering clashes in Odessa that led to the deaths of more than 40 pro-Russian activists in a blazing building and pushed the country closer to civil war. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)