At least one person is dead after a terror attacker brought carnage to central London today by mowing down pedestrians on Westminster Bridge and attacking police with a knife in the grounds of the Houses of Parliament.

More than 12 people are said to have been hit by a vehicle on the bridge after a vehicle described as a ‘4×4’ drove into pedestrians and cyclists before crashing into the gates of Parliament.

An intruder, described by a witness as ‘middle-aged and Asian’, then managed to break into the grounds of the Parliament and stabbed a police officer before he was shot.

An hour after the attack, paramedics removed one person from the scene after extensive CPR. Another body appeared to have been left on the ground covered by a red blanket.

A doctor at St Thomas’ Hospital has said one woman has died and a number of others have been hurt – including some with ‘catastrophic’ injuries.

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The Prime Minister was seen in the voting lobby at the time of the attack – she was bundled into a car and rushed from the scene with official sources saying she is unharmed.

Eyewitness Rick Longley said: “We were just walking up to the station and there was a loud bang and a guy, someone, crashed a car and took some pedestrians out.

“They were just laying there and then the whole crowd just surged around the corner by the gates just opposite Big Ben.
“A guy came past my right shoulder with a big knife and just started plunging it into the policeman.