Barricades are seen near the seized office of the SBU state security service in Luhansk
Barricades are seen near the seized office of the SBU state security service in Luhansk, eastern Ukraine April 26, 2014. Russia will take all possible steps to free detained OSCE military observers in the Ukrainian town of Slaviansk, Russian news agencies reported on Saturday, citing Russia's envoy to the Vienna-based Organisation for Security and Co-operation in Europe. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
Barricades are seen near the seized office of the SBU state security service in Luhansk
Barricades are seen near the seized office of the SBU state security service in Luhansk, eastern Ukraine April 26, 2014. Russia will take all possible steps to free detained OSCE military observers in the Ukrainian town of Slaviansk, Russian news agencies reported on Saturday, citing Russia's envoy to the Vienna-based Organisation for Security and Co-operation in Europe. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
Barricades are seen near the seized office of the SBU state security service in Luhansk
Barricades are seen near the seized office of the SBU state security service in Luhansk, eastern Ukraine April 26, 2014. Russia will take all possible steps to free detained OSCE military observers in the Ukrainian town of Slaviansk, Russian news agencies reported on Saturday, citing Russia's envoy to the Vienna-based Organisation for Security and Co-operation in Europe. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
A protester washes up, at barricades near the seized office of the SBU state security service in Luhansk
A protester washes up, at barricades near the seized office of the SBU state security service in Luhansk, eastern Ukraine April 26, 2014. Russia will take all possible steps to free detained OSCE military observers in the Ukrainian town of Slaviansk, Russian news agencies reported on Saturday, citing Russia's envoy to the Vienna-based Organisation for Security and Co-operation in Europe. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
Korolevskaya walks after a meeting with people in Luhansk
Presidential election candidate Natalia Korolevskaya (C) walks after a meeting with people in Luhansk, eastern Ukraine April 26, 2014. REUTERS/Vasily Fedosenko (UKRAINE - Tags: CIVIL UNREST ELECTIONS POLITICS)
Korolevskaya speaks with people in Luhansk
Presidential election candidate Natalia Korolevskaya (C) speaks with people in Luhansk, eastern Ukraine April 26, 2014. REUTERS/Vasily Fedosenko (UKRAINE - Tags: ELECTIONS POLITICS CIVIL UNREST)
Korolevskaya speaks with people in Luhansk
Presidential election candidate Natalia Korolevskaya (C) speaks with people in Luhansk, eastern Ukraine April 26, 2014. REUTERS/Vasily Fedosenko (UKRAINE - Tags: ELECTIONS POLITICS CIVIL UNREST)
Korolevskaya speaks with a woman in Luhansk
Presidential election candidate Natalia Korolevskaya (L) speaks with a woman in Luhansk, eastern Ukraine April 26, 2014. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST ELECTIONS)
A man reacts near a coffin containing the body of man killed in a gunfight on Thursday during a funeral ceremony in Slaviansk
A man reacts near a coffin containing the body of man killed in a gunfight on Thursday during a funeral ceremony in Slaviansk, April 26, 2014. Russia will take all possible steps to free detained OSCE military observers in the Ukrainian town of Slaviansk, Russian news agencies reported on Saturday, citing Russia's envoy to the Vienna-based Organisation for Security and Co-operation in Europe. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS RELIGION CIVIL UNREST)