London Metropolitan Police said that the name of the Westminster attacker is Khalid Masood.
"The man police believe to be responsible for the terrorist attack in Westminster yesterday, Wednesday, 22 March, has now been formally identified as Khalid Masood," the police said in a statement, Sputnik reports.
Khalid Masood, 52, was born in Kent. Investigators believe he was recently living in the West Midlands.
According to London police, the perpetrator of the Westminster attack outside the UK parliament was not a subject of current investigations, however, he was known to police.
"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 [grievous bodily harm], possession of offensive weapons and public order offences," the statement read.