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Ukraine crisis: US to expand Russia sanctions - Obama

28 April 2014 Last updated at 11:43 BST

US President Barack Obama says the US will step up sanctions against Russian individuals and companies as part of a "calibrated effort" to change the country's behaviour in Ukraine.

During a visit to the Philippines, Mr Obama said the measures were in response to Moscow's failure to uphold an international accord aimed at peacefully resolving the Ukraine crisis.

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