 The war ground on, worsening ethnic tensions, as the Hutu feared losing their gains.The assassination of Habyarimana was the catalyst for the eruption of the 1994 genocide, in which hundreds of thousands of Tutsis and some moderate Hutus were killed including the prime minister Agathe Uwilingiyimana.The Tutsi RPF conquered Rwanda, and thousands of Hutu were imprisoned pending the establishment of the Gacaca courts.