Ukraine warns Russia against 'act of aggression' in Crimea

Ukraine's acting president has warned Russia that troop movements outside its naval base in Crimea would be seen as an "act of aggression". Armed men seized regional government headquarters and parliament and the Russian flag is flying from buildings

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Ukraine acting president appeals for calm amid unrest

Ukraine's acting president has appealed for calm after the seizure of buildings on the country's Crimea peninsula by "criminals in military fatigues".

Clashes at rallies held by ethnic Russians and Crimean Tatars near the Crimean parliament building. Credit: Reuters

Oleksandr Turchynov said he has given orders for security structures to take "all measures" needed to protect Ukraine's citizens.

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