As EU leaders arrived at an emergency summit today to discuss the crisis in Ukraine, onlookers could be forgiven for thinking they were seeing double.

David Cameron, British's Prime Minister and Xavier Bettel are not brothers. They are striking look-a-likes and they are both Prime Ministers. Bettel is Luxembourg's prime minister, .

Like Cameron, he wore a navy suit, plumping for pinstripes, possibly to help avoid confusion.

The similarities don't end there: both men (born seven years apart) head up a coalition government: Cameron with the Lib Dems; Bettel (the liberal Democratic Party) with Luxembourg's Socialist Workers' Party and Green Party.

If that wasn't strange enough, before becoming PM, Bettel worked as a barrister - the same profession as David's elder brother, Alex Cameron QC.

Brothers in arms, indeed.

The EU leaders were holding an emergency summit at the EU headquarters in Brussels to discuss a response to Russia's troop deployment in Ukraine's Crimea.

 

During the talks, the leaders agreed a limited package of sanctions to be put in place with immediate effect.

They warned Russia of 'far-reaching consequences' unless it enters into direct talks with the Ukraine government to end the crisis.

And they warned of further measures, including asset freezes and travel bans, unless there was swift action.