KIGALI - More than 200 human remains have been unearthed from a mass grave of the 1994 Rwandan genocide discovered last week in Rwanda's capital city of Kigali, survivors' association Ibuka said on Tuesday.

Remains of those who have been exhumed from the 30-meters deep mass grave in Rusororo sector of Gasabo district were kept at cell offices and await a decent burial, said Theogene Kabagambire, head of Ibuka in Gasabo district.

Three more mass graves were yet to be dug under residence in the same area, Kabagambire told media.

"I cannot understand why it took more than two decades to discover these mass graves," said a survivor. "This is really tough, because people have been living in this area."

On April 6, 1994, then Rwandan President Juvenal Habyarimana died in an air crash, swiftly triggering a three-month-long genocide. The 1994 genocide against Tutsi claimed lives of more than 1 million people mainly Tutsi and moderate Hutus.

Kabagambire estimated that 3,000 genocide victims from surrounding areas could have been dumped in the discovered mass graves.