By Christian Smith

The Prime Minister, Theresa May said that the man who carried out yesterday’s attack at Parliament was born in Britain and known to the intelligence service. 

“What I can confirm is that the man was British-born and that some years ago he was once investigated by MI5 in relation to concerns about violent extremism.

“His identity is known to the police and MI5, and when operational considerations allow, he will be publicly identified,” she told fellow lawmakers at the House of Commons.

Scotland yard has now identified Khalid Masood 52, who was born in Kent, as the man responsible for the attack.

The Metropolitan police said in a statement: “Masood was not the subject of any current investigations and there was no prior intelligence about his intent to mount a terrorist attack. However, he was known to police and has a range of previous convictions for assaults, including GBH, possession of offensive weapons and public order offences.”

Four people, including a police officer named as PC Keith Palmer and a woman named as Aysha Frade, were killed in the attack that took place on Wednesday 22, March.

The third victim of the terror attack has been named as Kurt Cochran, a US tourist who died after falling from Westminster Bridge.

Eye witnesses said Mr Masood, a supposed “soldier of the Islamic State” mowed into pedestrians on Westminster Bridge with a car, before ramming into a gate and then running into Parliament where he stabbed the officer.

The attack comes on the one-year anniversary of the Brussels attacks.

Seven people at six locations in London and Birmingham have been arrested in the investigation into the attack.

MP Simon Hoare today, read a tube sign: “All terrorists are politely reminded that THIS IS LONDON and whatever you do to us we will drink tea and jolly well carry on thank you.”

Although, it has been established that the sign was created by an online tube sign generator and never existed in a London underground station, the Prime Minister said is was “a wonderful tribute” which “encapsulated everything everybody in this house has said today.”

The Queen who was to open the new Metropolitan police building this morning, has sent a message of condolence to the Acting Commissioner of the Metropolitan Police, Craig Mackey