Britain today slammed a vote in Crimea on breaking away from Ukraine as a "mockery" of democracy and refused to recognise the referendum's outcome.
Speaking in Brussels ahead of a meeting of European Union foreign ministers tomorrow, Foreign Secretary William Hague condemned the vote as being in breach of the Ukrainian constitution.
"Nothing in the way that the referendum has been conducted should convince anyone that it is a legitimate exercise," he said in a Foreign Office statement.
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"The UK does not recognise the referendum or its outcome, in common with the majority of the international community," he added.
He called on his EU colleagues to push for measures "that send a strong signal to Russia that this challenge to the sovereignty and territorial integrity of Russia will bring economic and political consequences".
Crimea's pro-Moscow authorities announced that exit polls showed a 93 per cent vote in favour of becoming part of Russia.