The Halloween Massacre (also known as the Three Day War) was a purge of UNITA party members and supporters carried out by Angola's ruling MPLA from October 30 to November 1, 1992, in Luanda, Angola. The unrest occurred as a result of the breakdown of the Bicesse Accords, on account of alleged voter fraud in the 1992 Angolan general elections, resulting in renewed military tensions, assassinations of public figures, and acts of terrorism. Thousands of UNITA supporters are estimated to have been murdered.