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Ukraine alert as politician 'killed'

22 April 2014 Last updated at 22:53 BST

Ukraine's acting president has relaunched military operations against pro-Russian militants in the east after two men, one a local politician, were found "tortured to death".

Olexander Turchynov said the politician, named as Volodymyr Rybak, was found near rebel-held Sloviansk.

He disappeared soon after he was filmed trying to gain access to Horlivka city council, which had been seized by pro-Russian activists.

Daniel Sandford reports from Donetsk.

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