 Direct elections resulted in a representative government dominated by the majority Hutu under President Grégoire Kayibanda.Unsettled ethnic and political tensions were worsened when Juvénal Habyarimana, who was also Hutu, seized power in 1973.In 1990, the Rwandan Patriotic Front (RPF), a rebel group composed of 10,000 Tutsi refugees from previous decades of unrest, invaded the country, starting the Rwandan Civil War.