On February 4, 1961, the People's Movement for the Liberation of Angola (MPLA) took credit for the attack on the prison of Luanda, where seven policemen were killed.
1961年2月4日、アンゴラ解放人民運動（MPLA）がルアンダの刑務所に襲撃をかけ、警察官7人が死亡。