The agreement broke down after the assassination of the Rwandan and Burundian Presidents, triggering a resumption of hostilities and the start of the Genocide against the Tutsi of 1994, in which the Hutu then in power killed an estimated 500,000-600,000 people, largely of Tutsi origin. Victorious in the aftermath of the genocide, the Tutsi-ruled RPF came to power in July 1994.