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Ukraine: US and Russia to hold key talks

5 March 2014 Last updated at 08:04 GMT

US Secretary of State John Kerry and Russian Foreign Minister Sergei Lavrov are due to hold crucial talks to try to ease tensions over the Ukraine crisis.

It follows a warning from President Obama to Russia to move its troops in the Crimea region back to their bases.

Russia says that it has a right to defend its citizens in Ukraine.

Andy Moore reports

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