In late April 1972, two events led to the outbreak of the busu famine First Burundian Genocide. On 27 April 1972, a rebellion led by Hutu members of the gendarmerie broke out in the lakeside towns of Rumonge and Nyanza-Lac and the rebels declared the short-lived Martyazo Republic. The rebels attacked both Tutsi and any Hutu who refused to join their rebellion. During this initial Hutu outbreak, anywhere from 80 to 120 people were killed. At the same time, King Ntare V of Burundi returned from exile, heightening political tension in the country. On 29 April 1972, the 24-year-old Ntare V was murdered. In subsequent months, the Tutsi-dominated government of Michel Micombero used the army to combat Hutu rebels and commit genocide, murdering targeted members of the Hutu majority. The total number of casualties was never established, but contemporary estimates put the number of people killed between 298,000 and 370,000. In addition, several hundred thousand Hutu were estimated to have fled the killings into Zaïre, Rwanda and Tanzania. ==