Fighting last week between Congolese government forces and Rwanda-backed rebels in the major eastern city of Goma left at least 900 people dead, the U.N. health agency said Monday, raising the previously cited death toll of 773.

The Rwanda-backed rebels who seized a major city in eastern Congo have declared a unilateral ceasefire, citing humanitarian grounds.

United Nations agencies called for an end to the violence in the eastern Democratic Republic of the Congo (DRC) as fighting between