Prime Minister David Cameron has pledged to play a constructive role in Europe after holding talks with German Chancellor Angela Merkel.
At their meeting in Berlin, the leaders discussed attempts to contain Europe's debt crisis and wider EU co-operation.
Mr Cameron said he was seeking a "strong and positive partnership" with Germany in the future.
But he ruled out the UK agreeing to any future EU treaty transferring further powers from Westminster to Brussels.
On his first foreign trip as UK leader Mr Cameron held talks with French President Nicolas Sarkozy on Thursday.
In a press conference in the German capital, Mr Cameron said there was "no question" of the UK agreeing to the transfer of any further powers from Westminster to Brussels.
He said any treaty proposing such a transfer of sovereignty was "not likely to happen" in the foreseeable future, a position endorsed by the German leader.
Although the UK would not be joining the euro, Mr Cameron said it was in the interest of Europe for the countries using the single currency to see "further growth and stability".
Their meeting is taking place against a backdrop of financial turmoil across Europe and calls for tighter regulation of financial markets to support the foundering euro. To read full BBC story — Go Here Now.
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