By Leon Watson PUBLISHED: 10:22 EST, 13 March 2014 | UPDATED: 05:12 EST, 14 March 2014 Violence has erupted in Ukraine's eastern city of Donetsk between Ukrainians and pro-Russian groups as Moscow moves thousands of troops to the border. Fighting broke out at rallies staged by opposing demonstrators. One person was killed and at least 10 were hurt, it has been reported. Pro-Russian demonstrators shouted 'Russia, Putin!' and hurled eggs, bottles and other projectiles at rival demonstrators. It comes as Russia confirmed today it has massed thousands of troops on its border with Ukraine as John Kerry warned of 'serious consequences' if Moscow tried to annex Crimea.
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Fighting broke out at rallies staged by opposing demonstrators. One person was killed and at least 10 were hurt
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It comes as Russia confirmed today it has massed thousands of troops on its border with Ukraine
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Meanwhile John Kerry warned of 'serious consequences' if Moscow tried to annex Crimea
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And Obama declares U.S. will 'completely reject' Sunday's referendum to be held in Crimea on peninsula's status
Pro Ukraine protestors, some of them injured, are shielded by police at right during clashes with pro @placeholder protestors following a rally in Donetsk, Ukraine