Men guarding military hospital
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Ukraine crisis: Tensions high in Crimean capital Simferopol

10 March 2014 Last updated at 23:16 GMT

Tensions remain high in the Crimean capital as Russia cements its control of the region ahead of Sunday's referendum to join Russia.

John Simpson reports from Simferopol where armed men - said to be Russian troops and local militias - seized a military hospital.

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