Police investigating the terror network behind the Manchester Arena bombing have stopped passing information to the US as a major transatlantic row emerged over leaks of key evidence.

The police, Downing Street and the Home Office refused to comment on the BBC report, but Theresa May is expected ti confront Donald Trump at a NATO meeting in Brussels on Thursday.

A Number 10 source told the Guardian that Downing Street was not involved in any decision to stop sharing details with the US.

It is understood the decision involves the "law enforcement" authorities rather than the intelligence agencies, which means that arrangements involving MI5, MI6 and GCHQ are not affected.

UK Government ministers voiced their anger in calls to their US counterparts on Wednesday after the New York Times published photos appearing to show bomb fragments and the backpack used by Salman Abedi to conceal the bomb.

A Whitehall source said: "We are furious. This is completely unacceptable. These images leaked from inside the US system will be distressing for victims, their families and the wider public.

"The issue is being raised at every relevant level by the British authorities with their US counterparts."