More than 2,000 people were killed during the paramilitary Rapid Support Forces’ capture of el-Fasher, the last major city in Darfur that had been held by the Sudanese army, Sudan’s deputy commissioner for humanitarian aid said Wednesday.

Commissioner Mona Nour El-Daem added that the RSF had targeted medical convoys and kidnapped medical staff, “demanding a ransom of $2,500 per person.”

Minister of Culture, Information and Tourism Khalid Al-Aisran separately put the number of victims at 2,377, according to a Wednesday report from Sudan’s state news agency, SUNA.  

On Sunday, the RSF declared victory in el-Fasher after months of siege that left an estimated 250,000 to 300,000 people trapped inside the city. On Monday, the RSF said in a statement posted to Telegram that its fighters were working to “eliminate the last of the terrorists and mercenaries’ strongholds.” Videos circulating online in recent days appear to show scenes of mass executions, mutilated bodies and celebrations by RSF fighters following their takeover. 

In a video posted to the group’s Telegram channel on Wednesday, RSF leader Mohamed Hamdan Dagalo, widely known as Hemedti, gave an address celebrating the “liberation” of el-Fasher, saying it marks a step “toward national unity.” 

“I also observed some violations that happened in el-Fasher,” he said, announcing the formation of an “investigation committee” to hold accountable “any officers and soldiers that exceed their limit or violate others’ rights.” He added that “all civilians are allowed to move freely” in el-Fasher.