Sudan's army admitted on Monday it had withdrawn from the strategic hub of El-Fasher, while the United Nations issued a stark warning over reports of "atrocities" by the paramilitary group now in control of the city.

Fears have mounted for the safety of tens of thousands of civilians in the city in western Darfur, trapped in an 18-month siege by the Rapid Support Forces (RSF), which has been fighting a brutal war with Sudan's army for more than two years.

Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.