Security camera footage shows the moment armed men seize part of the parliament building in Ukraine's Crimea region Thursday.
The video shows heavily-armed men, dressed in full body armor entering the government building.
Ukraine's top security official says the armed men in Crimea were taking their orders from the top in Russia.
Moscow has promised to defend the interests of its citizens in Ukraine and has said it will not intervene by force. But some fear its rhetoric since the removal of President Viktor Yanukovich a week ago echoed the run-up to its invasion of Georgia in 2008.