The 2017 Westminster attack was a suspected terror attack that occurred on 22 March 2017 on Westminster Bridge, in Parliament Square and within the grounds of the Palace of Westminster in central London. A four-wheel drive vehicle[2] was driven into a crowd of people near the palace gates, and an attacker stabbed people, at least one of them being a police officer. Three people, including one police officer, are confirmed dead, as well as the only known assailant.[3][4][5][2][6][7]