Protesters look at a fire in the trade union building in Odessa
Protesters look at a fire in the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
Dozens die in Odessa, rebels down Ukraine helicopters
UKRAINE-CRISIS/ (WRAPUP 11, PIX, TV)=2:WRAPUP 11-Dozens die in Odessa, rebels down Ukraine helicopters
A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa
A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa
A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)
A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa
A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)
People wait to be rescued on the ledge of the second floor during a fire at the trade union building in Odessa
People wait to be rescued on the ledge of the second floor during a fire at the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
A pro-Russian activist tent camp burns in front of the trade union building in Odessa
A pro-Russian activist tent camp burns in front of the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
Ukraine says two soldiers killed near Slaviansk after rebel attack
UKRAINE-CRISIS/SLAVIANSK-CASUALTIES (URGENT):Ukraine says two soldiers killed near Slaviansk after rebel attack
People wait for rescue on an upper storey ledge during a fire at the trade union building in Odessa
People wait for rescue on an upper storey ledge during a fire at the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)
A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa
REFILE - CORRECTING BYLINE A protester walks past a burning pro-Russian tent camp near the trade union building in Odessa May 2, 2014. At least 38 people were killed in a fire on Friday in the trade union building in the centre of Ukraine's southern port city of Odessa, regional police said. REUTERS/Yevgeny Volokin (UKRAINE - Tags: POLITICS CIVIL UNREST)