The attacker who killed three people near the British parliament before being shot dead was British-born and was once investigated by MI5 intelligence agents over concerns about violent extremism, Prime Minister Theresa May said on March 23.
Reuters: UK attacker previously investigated over extremism
An arrangement of newspapers pictured in London on March 23, as an illustration, shows the front pages of the UK daily newspapers reporting on the March 22 terror attack that claimed at least three lives in Westminster central London.
