The Sudan Doctors Network reports at least 31 people, including children, were executed by the paramilitary Rapid Support Forces in Omdurman, in what the group called a “war crime and a crime against humanity.” Omdurman is the sister city to the capital Khartoum, which the Sudanese army reclaimed control over last month after two years of a devastating civil war. Separately, at least 11 people were killed in an RSF drone attack Friday at a displacement camp in River Nile state.

Meanwhile, the U.N. reports at least 480 civilians were killed in Sudan’s North Darfur over the two-week period starting April 10, though the actual number is expected to be much higher. The U.N. also reports widespread sexual violence, including during the deadly attack on the Zamzam displacement camp between April 11 and 13. Many rape victims are children. Numerous deaths have also been caused by hunger, shortages of water or lack of medical care. The U.N. has described Sudan as the world’s worst humanitarian crisis.