Updated

Regional leaders are meeting in Uganda in the latest summit intended to find a solution to the crisis in eastern Congo as the M23 rebel group takes territory from the army and threatens to topple President Joseph Kabila's government.

Uganda, whose leader is acting as a mediator, has had its credibility tarnished by revelations in a U.N. report that some of its military officials support M23 rebels, who this week took control of the provincial capital Goma, and the city of Sake in Congo's east. Rwanda is also accused of supporting the rebels.

Kabila was in Uganda for the talks Saturday, but Rwandan President Paul Kagame was absent. A joint statement from the presidents of Congo, Uganda and Rwanda on Wednesday urged the rebels to pull out of Goma.

Ugandan officials said M23 representatives were not invited to the talks.