The U.N.’s top human rights body is holding an urgent session on spiralling violence in eastern Congo, where Rwanda-backed rebels recently captured a major city.

The worst could be yet to come in east Congo's escalating crisis, U.N. human rights chief Volker Turk said on Friday, warning that abuses including rape and sexual slavery may increase.

The Luanda Process has not been able to bring tangible results either. The reasons for this failure include bad faith from ...