A woman reacts outside trade union building, where deadly fire occurred, during a rally in Odessa
A woman reacts outside a trade union building, where a deadly fire occurred, during a rally in Odessa, May 3, 2014. At least 42 people were killed in street battles between supporters and opponents of Russia in southern Ukraine that ended with pro-Russian protesters trapped in a flaming building, bringing the country closer to war. The riot in the Black Sea port of Odessa that ended in a deadly blaze in a trade union building was by far the worst incident in Ukraine since a February uprising that ended with a pro-Russian president fleeing the country. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
Women bring flowers in memory of people killed in recent street battles outside a trade union building, where a deadly fire occured, in Odessa
Women bring flowers in memory of people killed in recent street battles outside a trade union building, where a deadly fire occurred, in Odessa, May 3, 2014. At least 42 people were killed in street battles between supporters and opponents of Russia in southern Ukraine that ended with pro-Russian protesters trapped in a flaming building, bringing the country closer to war. The riot in the Black Sea port of Odessa that ended in a deadly blaze in a trade union building was by far the worst incident in Ukraine since a February uprising that ended with a pro-Russian president fleeing the country. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russian and pro-Ukrainian demonstrators clash during rally outside trade union building, where deadly fire occurred, in Odessa
Pro-Russian and pro-Ukrainian demonstrators clash during a rally outside a trade union building, where a deadly fire occurred, in Odessa, May 3, 2014. At least 42 people were killed in street battles between supporters and opponents of Russia in southern Ukraine that ended with pro-Russian protesters trapped in a flaming building, bringing the country closer to war. The riot in the Black Sea port of Odessa that ended in a deadly blaze in a trade union building was by far the worst incident in Ukraine since a February uprising that ended with a pro-Russian president fleeing the country. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
A man reacts outside trade union building, where deadly fire occurred, in Odessa
A man, wearing a black and orange ribbon of St. George, a symbol widely associated with pro-Russian protests in Ukraine, reacts outside a trade union building, where a deadly fire occurred, with Ukrainian Interior Ministry security forces members seen in the background, in Odessa, May 3, 2014. At least 42 people were killed in street battles between supporters and opponents of Russia in southern Ukraine that ended with pro-Russian protesters trapped in a flaming building, bringing the country closer to war. The riot in the Black Sea port of Odessa that ended in a deadly blaze in a trade union building was by far the worst incident in Ukraine since a February uprising that ended with a pro-Russian president fleeing the country. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
A man reacts outside trade union building, where a deadly fire occurred, in Odessa
A man, wearing a black and orange ribbon of St. George, a symbol widely associated with pro-Russian protests in Ukraine, reacts outside a trade union building, where a deadly fire occurred, with Ukrainian Interior Ministry security forces members seen in the background, in Odessa, May 3, 2014. At least 42 people were killed in street battles between supporters and opponents of Russia in southern Ukraine that ended with pro-Russian protesters trapped in a flaming building, bringing the country closer to war. The riot in the Black Sea port of Odessa that ended in a deadly blaze in a trade union building was by far the worst incident in Ukraine since a February uprising that ended with a pro-Russian president fleeing the country. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
Ukraine says Odessa unrest planned and financed from abroad
UKRAINE-CRISIS/INTERFERENCE (UPDATE 1):UPDATE 1-Ukraine says Odessa unrest planned and financed from abroad
OSCE observer Schneider walks on a road 30 km (19 miles) from Donetsk after being freed by pro-Russian separatists
OSCE observer Axel Schneider walks on a road 30 km (19 miles) from Donetsk in eastern Ukraine May 3, 2014, after being freed by pro-Russian separatists. A group of military observers who were seized last week by pro-Russian separatists in Slaviansk has been released, the Organization for Security and Cooperation in Europe (OSCE) confirmed on Saturday. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
An OSCE observer walks with a colleague on a road 30 km (19 miles) from Donetsk after being freed by pro-Russian separatists
An OSCE observer (R) walks with a colleague on a road 30 km (19 miles) from Donetsk in eastern Ukraine May 3, 2014, after being freed by pro-Russian separatists. A group of military observers who were seized last week by pro-Russian separatists in Slaviansk has been released, the Organization for Security and Cooperation in Europe (OSCE) confirmed on Saturday. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
A convoy of cars with OSCE observers is pictured on a road 30 km (19 miles) from Donetsk after the observers were freed by pro-Russian separatists
A convoy of cars with OSCE observers is pictured on a road 30 km (19 miles) from Donetsk in eastern Ukraine May 3, 2014, after the observers were freed by pro-Russian separatists. A group of military observers who were seized last week by pro-Russian separatists in Slaviansk has been released, the Organization for Security and Cooperation in Europe (OSCE) confirmed on Saturday. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)
OSCE observer Schneider talks to his colleagues on a road 30 km (19 miles) from Donetsk after being freed by pro-Russian separatists
OSCE observer Axel Schneider (3rd R) talks to his colleagues on a road 30 km (19 miles) from Donetsk in eastern Ukraine May 3, 2014, after being freed by pro-Russian separatists. A group of military observers who were seized last week by pro-Russian separatists in Slaviansk has been released, the Organization for Security and Cooperation in Europe (OSCE) confirmed on Saturday. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST)