Hutu rebels and former Interahamwe members fleeing the Tutsi capture of Rwanda following the Rwandan genocide perpetrated by Hutus in 1994 fled to eastern Congo.

[2] A group of fifteen park rangers were on their way back to Virunga from the bush on April 24 when they saw a civilian vehicle that had been attacked near the village of Rumangabo.

[3] As they escorted the civilian vehicle back to Virunga, they were ambushed by sixty FDLR fighters.

[5] The Congolese Institute for the Conservation of Nature (ICCN) stated that the FDLR and it's armed wing Forces Combattantes Abacunguzi were responsible for the massacre.

[4] The ICCN stated that the FDLR knows "every inch of the park", and controls it's southeastern portion.