CaptionA Hutu man at a Red Cross hospital, his face mutilated by the Hutu 'Interahamwe' militia, who suspected him of sympathizing with the Tutsi rebels. The animosity between the Hutu and Tutsi population groups in Rwanda had been simmering for decades. In April, the death of Hutu president Habyarimana in a plane crash near the capital of Kigali sparked murderous attacks on the Tutsi minority and Hutu moderates. The situation deteriorated further when the mainly Tutsi rebels of the Rwandan Patriotic Front (RPF) started pushing south from their stronghold in northern Rwanda. A mass exodus of people trying to escape excessive violence was underway by July.