Armed police secure the area across the road from the Palace of Westminster housing the Houses of Parliament in central London on March 23, 2017 after Westminster bridge reopened following its closure by security services during and after the March 22 terror attack at the British parliament. Pic/AFP

London: Scotland Yard on Thursday formally identified the London terror attacker as 52-year-old Khalid Masood, who was known to police, the BBC reported.

Masood was born in Kent and detectives believe he was most recently living in the West Midlands.