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)
Woman stands in front of pro-Russia protesters outside the district council building in Donetsk
A woman stands in front of pro-Russia protesters 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 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 TPX IMAGES OF THE DAY)
Pro-Russia protesters burn 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)
Putin, Merkel discuss Ukraine, gas supply in telephone call-Kremlin
UKRAINE-CRISIS/GERMANY (URGENT):Putin, Merkel discuss Ukraine, gas supply in telephone call-Kremlin
Pro-Ukrainian supporters attend a rally in central Black Sea port of Odessa
Pro-Ukrainian supporters attend a rally in the central Black Sea port of Odessa May 4, 2014. Pro-Russian militants stormed a Ukrainian police station in Odessa on Sunday and freed 30 fellow activists as the prime minister blamed police corruption there for dozens of deaths in rioting on Friday. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
A pro-Ukrainian supporter arrives at a rally as police stand guard in the central Black Sea port of Odessa
A pro-Ukrainian supporter arrives at a rally as police stand guard in the central Black Sea port of Odessa May 4, 2014. Pro-Russian militants stormed a Ukrainian police station in Odessa on Sunday and freed 30 fellow activists as the prime minister blamed police corruption there for dozens of deaths in rioting on Friday. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
A pro-Ukrainian supporter takes part in a rally in central Black Sea port of Odessa
A pro-Ukrainian supporter takes part in a rally in the central Black Sea port of Odessa May 4, 2014. Pro-Russian militants stormed a Ukrainian police station in Odessa on Sunday and freed 30 fellow activists as the prime minister blamed police corruption there for dozens of deaths in rioting on Friday. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Ukrainian supporters attend a rally in central Black Sea port of Odessa
Pro-Ukrainian supporters attend a rally in the central Black Sea port of Odessa May 4, 2014. Pro-Russian militants stormed a Ukrainian police station in Odessa on Sunday and freed 30 fellow activists as the prime minister blamed police corruption there for dozens of deaths in rioting on Friday. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Ukrainian supporters attend a rally in central Black Sea port of Odessa
Pro-Ukrainian supporters attend a rally in the central Black Sea port of Odessa May 4, 2014. Pro-Russian militants stormed a Ukrainian police station in Odessa on Sunday and freed 30 fellow activists as the prime minister blamed police corruption there for dozens of deaths in rioting on Friday. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)