UN secretary-general says Sudan's war is 'spiraling out of control'

The paramilitary RSF reportedly killed more than 450 people in a hospital and carried out ethnically targeted killings of civilians and sexual assaults while seizing the city last week. It had besieged el-Fasher for 18 months, cutting off most food and other supplies needed by tens of thousands of people.

The RSF has denied committing atrocities, but testimonies from those fleeing, online videos and satellite images offer an apocalyptic vision of their attack. The scope of the violence remains unclear because communications are poor in the region.