By Martin Robinson PUBLISHED: 03:04 EST, 7 November 2012 | UPDATED: 10:33 EST, 7 November 2012 Britain has woken to a Barack Obama victory at the U.S. polls and David Cameron was up early to send his own congratulations. Speaking from Jordan, the Prime Minister called Mr Obama his 'friend' and said they must work together to solve the crisis in Syria and build a trade agreement between the EU and America. The two world leaders have become close, despite their political differences, and their wives Samantha and Michelle have also become friendly. He took to Twitter just after Mitt Romney had conceded defeat saying: 'Warm congratulations to my friend @BarackObama. Look forward to continuing to work together'.
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'Warm congratulations to my friend @BarackObama. Look forward to continuing to work together,' the PM tweeted
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Mr Cameron also said they should work together to deal with the Syria crisis and set up trade deals between the EU and the U.S.
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The PM is in Jordan and visited a refugee camp on its border with Syria
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Nelson Mandela congratulates Obama and hopes he'll 'realise his dream'
Michelle
Sweet victory: US President Barack Obama and his wife @placeholder celebrate on stage after Obama delivered his acceptance speech today
Mitt Romney
Obama's victory became assured at 4.24am GMT and @placeholder gave up officially at just before 6am.
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'There are so many things that we need to do: we need to kick start the world economy and I want to see an @placeholder-US trade deal.
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'Right here in @placeholder I am hearing appalling stories about what has happened inside Syria so one of the first things I want to talk to Barack about is how we must do more to try and solve this crisis.
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I've enjoyed working with him, I think he's a very successful @placeholder president and I look forward to working with him in the future.'