The Harrods bombing usually refers to the car bomb that exploded outside Harrods department store in central London on Saturday 17 December 1983. Members of the Provisional IRA planted the time bomb and sent a warning 37 minutes before it exploded, but the area was not evacuated. The blast killed three police officers and three civilians, injured 90 people, and caused much damage. The IRA Army Council claimed it had not authorised the attack and expressed regret for the civilian casualties. The IRA had been bombing commercial targets in England since the early 1970s, as part of its "economic war".