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Tensions in Donetsk, with Ukraine's future at stake

A pro-Ukrainian activist plays Ukraine's national anthem with a trumpet as another holds Ukraine's flag during a demonstration in front of police officers guarding the regional state administration building Donetsk on March 7, 2014Tempers flared Friday on Lenin Square in Donetsk -- a Russia-friendly heartland city in eastern Ukraine that has been swept by unrest since the ouster of former president and native son Viktor Yanukovych.