Thousands of people have reportedly been killed in El-Fasher, the capital of North Darfur state, after the city fell to the Rapid Support Forces (RSF) on Sunday.
The city has been under siege for 18 months, leaving an estimated 1.2 million people without food and medicine. The RSF is alleged to have built a 56-kilometer-long blockade to prevent aid from entering.
A United Nations (UN) report said more than 26,000 people had fled in two days, while 177,000 were still trapped. Since the civil war began two and a half years ago, more than 40,000 people have been killed and 12 million displaced.
Footage verified by Al Jazeera Sanad shows RSF fighters torturing and killing civilians. The Sudanese Doctors Network also reported attacks on hospitals and mass detentions. The UN Human Rights Office confirmed the ethnically motivated killings.
The Yale Humanitarian Research Laboratory (HRL) confirmed the report through satellite imagery, showing shifting ground and bloodstains around the town.
At the same time, atrocities were also reported in Bara, North Kordofan, with five Red Cross volunteers killed and three missing.
The fall of El-Fasher means the entire Darfur region is now under RSF control, with the Sudanese army (SAF) holding out only in the eastern part of the country. RSF are reportedly advancing on El-Obeid, a strategic oil-rich town in North Kordofan, which is now a key location between the strongholds of Khartoum and Darfur.