Around 3,000 people have been killed in clashes between M23 rebels and government forces, and thousands more have been displaced after the worst escalation of fighting in more than a decade.
Talks are under way among leaders of African countries to end fighting in the Democratic Republic of the Congo (DRC), in which thousands of people have been killed, thousands forced to leave their homes, and which threatens to bring down its elected government.
Paul Kagame, president of neighbouring Rwanda, whose government is accused of backing the M23 rebels, is there, along with other leaders from eastern and southern Africa.
Leaders from the East African Community bloc, which includes both Rwanda and Congo, and those from the Southern African Development Community, or SADC, are taking part in the talks, which began in the Tanzanian capital, Dar es Salaam, on Friday.