The Harrods bombing refers to the car bomb that exploded outside Harrods department store in central London, England, on Saturday 17 December 1983. Members of the Provisional Irish Republican Army 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 said it had not authorised the attack and expressed regret for the civilian casualties. After the bombing, the IRA shifted its emphasis towards attacks on military targets on the mainland.