A U.S. group says new satellite imagery and eyewitness reports point to evidence of three new mass graves in a contested area of Sudan.
The Satellite Sentinel Project on Wednesday released images of what it says are two piles of corpses wrapped in body bags or tarps in Kadugli, the capital of South Kordofan, where Sudan's Arab military has been fighting black tribesmen loyal to the new state of South Sudan.
The group said an analysis of satellite images concluded that pro-government forces are trying to cover up a third mass grave beneath a water tank.
Activist John Prendergast says evidence is mounting of war crimes by Sudan's government.
The Khartoum government has denied carrying out atrocities.