Dmytro Firtash
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US tries to extradite Ukrainian tycoon Dmytro Firtash

1 May 2014 Last updated at 07:19 BST

One of Ukraine's most powerful and controversial businessmen Dmytro Firtash, has accused the United States of acting illegally by having him arrested in the Austrian capital, Vienna.

The United States wants him extradited to face charges of being part of a criminal organisation involved in bribery and corruption, all of which he denies.

Mr Firtash gave an exclusive television interview to the BBC correspondent Richard Galpin.

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