Ukraine crisis: Obama condemns Crimea referendum
6 March 2014 Last updated at 18:47 GMT
US President Barack Obama has joined Ukraine's government in condemning a move by the Crimea region to set up a referendum to join Russia.
An EU meeting in Brussels threatened "serious consequences" if Russia did not act to de-escalate the crisis.
Mr Obama said "the proposed referendum on the future of Crimea would violate the Ukrainian constitution and violate international law".