Ukraine's interim president launches a crackdown on pro-Russian demonstrators who have taken over state buildings in eastern Ukraine.
Ukraine Cracks Down on Pro-Russian Separatists
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A Ukrainian soldier stands guard at a checkpoint near the city of Barvenkovo in the Kharkiv region of east Ukraine, April 15, 2014.
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Ukranian troops stand guard at a checkpoint near the city of Izium in the Kharkiv region of east Ukraine, April 15, 2014.
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Members of the Ukrainian Interior Ministry walk past armored personnel carriers at a checkpoint near the town of Izium, eastern Ukraine, April 15, 2014.
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Pro-Russian protesters sit at barricades at the police headquarters in Slaviansk, April 15, 2014.