According to CNS, the massacre was expected to take place in the town of Kadugli in South Kordofan. The battle took place last month between rebels and soldiers from the Nuba mountains of Sudan.
South Kordofan borders with South Sudan, which last week became an independent state. About 70,000 people fled from the fighting there. A Sudanese army spokesman denied allegations that civilians were killed.
CNS-gabar said the satellite images is consistent with the allegations that the Sudanese army and government-backed militias would target civilians. Recent UN report mentions the bombing and the fighting continued in South Kordofan despite a peace deal.
The BBC's James Copnall, in the Sudanese capital, Khartoum, reports are very difficult to get accurate information, because foreign journalists and diplomats were barred from entering the area and also restricted the movement of UN members. "The images from the Sentinel Project shows three mass graves," said Copnall, Thursday (14 / 7).
U.S. President Barack Obama has expressed concern over reports of attacks in South Kordofan are reported based on ethnicity. Khartoum denies the charge and said fighting Projects Are legitimate war as a defense against the rebels.
Most of the population in the Nuba mountains region fighting against rebels in the south during the north-south war that lasted for twenty years. South Sudan President Salva Kiir said he would not cooperate with the Sudanese President Omar al-Bashir to ensure that their rights are respected.
Bashir admitted South Sudan, but said a new peace with neighboring countries should be based on mutual respect and not interfere in the affairs of the border respectively.