Analysts say the deadly march by Rwanda-backed rebels across eastern Congo could widen into a regional conflict drawing in even more countries, and the two nations most involved in the mineral-rich area might be the key to stopping the violence.

The march by Rwanda-backed rebels across eastern Congo risks escalating into a regional conflict, with countries such as Burundi, Uganda, and Tanzania already involved. Despite diplomatic efforts, tensions remain high.

Over 2,000 bodies require burial in Goma after Rwanda-backed M23 rebels took over the Democratic Republic of Congo city last week, inflaming a decade-old conflict and humanitarian crisis, Congo's communications minister Patrick Muyaya said late on Monday.

The decision by the Human Rights Council was requested by Congo and agreed to by consensus, meaning no vote was taken. It culminated an urgent session on the spiraling violence in a region where Rwanda-backed M23 rebels recently captured the key city of Goma.

The rebels continued advances in eastern Congo despite their own announcement of a cease-fire. The U.N. secretary-general called for them to lay down their guns and agree to mediation.