A pro-Russian activist holds a mace outside the regional government headquarters in Luhansk
A pro-Russian activist holds a mace outside the regional government headquarters in Luhansk, eastern Ukraine, April 29, 2014. Hundreds of pro-Russian separatists seized the regional government headquarters in Luhansk on Tuesday, unopposed by police, underlining the lack of control of central government over swathes of eastern Ukraine. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)
Pro-Russian activist sits inside the regional government headquarters in Luhansk
A pro-Russian activist sits inside the regional government headquarters in Luhansk, eastern Ukraine, April 29, 2014. Hundreds of pro-Russian separatists seized the regional government headquarters in Luhansk on Tuesday, unopposed by police, underlining the lack of control of central government over swathes of eastern Ukraine. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)
Putin sees no need to sanction West, may review energy ties
UKRAINE-CRISIS/PUTIN-SANCTIONS (UPDATE 2):UPDATE 2-Putin sees no need to sanction West, may review energy ties
Pro-Russian armed men take cover behind cars near the local police headquarters in Luhansk
Pro-Russian armed men take cover behind cars near the local police headquarters in Luhansk, eastern Ukraine, April 29, 2014. Pro-Russian separatists in Ukraine opened fire with automatic weapons and threw stun grenades at the local police headquarters in the eastern city of Luhansk on Tuesday, a Reuters photographer said. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)
Pro-Russian activists wait outside the regional police headquarters in Luhansk
Pro-Russian activists wait outside the regional police headquarters in Luhansk, eastern Ukraine, April 29, 2014. Hundreds of pro-Moscow separatists stormed government buildings in one of Ukraine's provincial capitals on Tuesday and fired on police holed up in a regional headquarters, a major escalation of their revolt despite new Western sanctions on Russia. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russian activists wait outside the regional police headquarters in Luhansk
Pro-Russian activists wait outside the regional police headquarters in Luhansk, eastern Ukraine, April 29, 2014. Hundreds of pro-Moscow separatists stormed government buildings in one of Ukraine's provincial capitals on Tuesday and fired on police holed up in a regional headquarters, a major escalation of their revolt despite new Western sanctions on Russia. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
Members and supporters of Ukrainian far-right radical groups take part in a torch-light procession to commemorate people killed in recent clashes during protest rallies held by Euromaidan movement in Kiev
Members and supporters of Ukrainian far-right radical groups take part in a torch-light procession to commemorate people killed in recent clashes during protest rallies held by Euromaidan movement in central Kiev April 29, 2014. REUTERS/Konstantin Grishin (UKRAINE - Tags: POLITICS CIVIL UNREST)
Members of self-defence units of the Euromaidan movement attempt to prevent members and supporters of Ukrainian far-right radical groups from taking part in a torch-light procession in Kiev
Members of the self-defence units of the Euromaidan movement gather at a barricade as they attempt to prevent members and supporters of Ukrainian far-right radical groups (back) from taking part in a torch-light procession in central Kiev April 29, 2014. REUTERS/Konstantin Grishin (UKRAINE - Tags: POLITICS CIVIL UNREST)
A man uses a fire extinguisher as members of self-defence units of the Euromaidan movement attempt to prevent members and supporters of Ukrainian far-right radical groups from taking part in a torch-light procession in Kiev
A man uses a fire extinguisher as members of self-defence units of the Euromaidan movement attempt to prevent members and supporters of Ukrainian far-right radical groups (back) from taking part in a torch-light procession in central Kiev April 29, 2014. REUTERS/Konstantin Grishin (UKRAINE - Tags: POLITICS CIVIL UNREST)