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Pro-Russian activists in Eastern Ukraine

Associated Press
Pro-Ukrainian demonstrators march hold flares and make their way to the trade union building, in Odessa, Ukraine, Sunday, May 4, 2014, where people died in in a fire that tore through the building. More than 40 people died in riots two days earlier, some from gunshot wounds, but most in a horrific fire that tore through a trade union building. (AP Photo/Vadim Ghirda)

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Hundreds of pro-Russian demonstrators stormed police headquarters in Odessa on Sunday and won the release of 67 people detained after deadly clashes in the Ukrainian port city.

More than 40 people died in the riots two days earlier, some from gunshot wounds, but most in a horrific fire that tore through a trade union building.

Ukrainian Prime Minister Arseniy Yatsenyuk, who hinted strongly that he saw Moscow's hand in the unrest spreading through southeastern Ukraine, visited Odessa on Sunday to try to defuse the mounting tensions. (AP)

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