Attack in Westminster, London

In London, England, on March 22, a man struck pedestrians with his car on Westminster Bridge before approaching Westminster Palace, home to the UK’s Parliament, on foot and stabbing a police officer. He killed four people, including the police officer and an American tourist. More than 40 other people were injured. The attacker was killed by police before he could enter Westminster. Police are describing the incident as a terrorist attack.

The attacker was identified as a British-born Muslim with a long criminal history but no known affiliation with any terrorist organization. Islamist militant group Daesh (ISIL) claimed, in an online post, that he was one of their soldiers, but British law enforcement believe he was self-radicalized.