UN Secretary-General Antonio Guterres warned on Monday of a "terrible escalation" of violence in el-Fasher in the Darfur region, as paramilitary Rapid Support Forces (RSF) fighting the Sudanese army say they have taken complete control of the city. The reported seizure of el-Fasher, the last major city in the region still in government hands, is being seen as a potential turning point in Sudan's civil war, which has been running since April 2023. According to UN estimates, some 300,000 people