A drone strike on a mosque in Sudan’s Darfur region has killed at least 78 people and injured around 20 others, a senior medical source has told the BBC. The attack occurred during Friday morning prayers in the besieged city of el-Fasher — the last major stronghold of the Sudanese army in Darfur. The strike has been widely attributed to the paramilitary Rapid Support Forces (RSF), though the group has not officially claimed responsibility. The RSF and Sudan’s national army have been locked in a brutal civil war for over two years, with the paramilitary force now closing in on full control of el-Fasher — a city sheltering more than 300,000 civilians trapped by the conflict. One resident described the...