Sudan's Rapid Support Forces (RSF) paramilitary group has gathered hundreds of bodies from the streets of El-Fasher in recent days, dumping some in mass graves and burning others, the Sudanese Doctors' Network said on Sunday.
The network described the group's horrific actions, which followed their brutal takeover of the capital of North Darfur state, as "yet another crime added to the RSF's record".
The statement added that the burials and burnings were an attempt to hide the RSF's "crimes against civilians".
The RSF overran El-Fasher after besieging the city for around 18 months. The paramilitary group rampaged through the Saudi Hospital in the city, killing over 450 people, according to the WHO, and went house to house, killing civilians and committing sexual assaults.
The RSF has denied killing anyone at the Saudi hospital, but testimonies from those fleeing, online videos and satellite images offer an apocalyptic vision of the attack.
"These crimes will not be erased by cover-ups or arson," The Sudanese Doctors' Network said, urging the international community to launch an investigation.
The network described the RSF's actions as a "new chapter in a full-fledged genocide".
On Thursday, the RSF said it has agreed to a humanitarian truce proposed by a US-led mediator group known as the Quad. Meanwhile, the army said it welcomes the Quad's proposal, but will only agree to it if the RSF withdraws from civilian areas and gives up its weapons.
The conflict in Sudan, raging since April 2023, has pitted the forces of army chief Abdel Fattah al-Burhan against those of his former deputy, RSF commander Mohammed Hamdan Daglo.
It has killed tens of thousands of people, displaced millions more and created the world's largest displacement and hunger crisis, according to the UN.