Donald Trump Tweets About Parsons Green London Bomber (Video)

'I'll call her right now': Trump vows to phone May about the Parsons Green terror attack after she blasts his Twitter rant claiming Scotland Yard had the bomber 'in their sights'
Donald Trump today insisted he would call Theresa May 'right now' about the......
Parsons Green bombing after he sparked a new row over intelligence sharing.

The President claimed in a Twitter rant that Scotland Yard had the bomber 'in their sights' ahead of today's attack - implying officers had a suspect before the explosion.

Both Mrs May and the Met Police blasted Mr Trump today for speculating about the fast moving investigation. A backlash was growing as MPs told MailOnline the US must not undermine a crucial intelligence sharing relationship.

The row is a revival of damaging split between London and Washington in May when shared intelligence about the Manchester bombing was handed to US media.

After risking a new diplomatic row with Britain, Mr Trump insisted he had been briefed on intelligence about the attack and said he would call Mrs May.

Mr Trump's initial Tweets came at almost exactly the same time as Met Assistant Commissioner Mark Rowley gave an initial update on the attack in a TV statement.

Standard UK police procedure in the aftermath of any terror attack is to keep the identity of any suspects confidential. The tactic allows rapid arrests to be carried out without alerting the prime suspect or their family and friends.

Mr Trump's used today's tirade to promote his plans for a travel crackdown on Muslims wanting to visit the United States.

Speaking from Downing Street after chairing a meeting of the Government's emergency 'Cobra' committee, Mrs May said: 'I never think it's helpful for anybody to speculate on what is an ongoing investigation.'

A Met Police spokesman said: 'The comments are unhelpful and pure speculation.

'If anyone has got any evidence or information, please contact the anti-terrorism hotline.'

The force declined to give details when asked by MailOnline if they had a suspect, evidence of a wider plot or if any suspect was seen on CCTV.

Liberal Democrat home affairs Sir Ed Davey told MailOnline Mr Trump could undermine the police investigation

He said: 'It is insulting to the victims of this attack that Donald Trump is already using it to try and further his divisive political agenda.

'Once again, Trump has shown he is not fit for the office of US President.'

Labour MP Stephen Doughty, a member of the Home Affairs Select Committee, told the MailOnline the President should not have intervened.

He said: 'The full focus must be on allowing the police and security services to do their job, and those responding at the scene to the emergency and tending to those injured.'

Mr Doughty warned the United States was endangering the special relationship by interfering in British investigations.

He said: 'It has the potential to not only undermine a vital relationship, but also to prejudice investigations into this and other incidents.'