Apart from those killed, several nomads were also injured in the attack and their livestock were looted and taken to Chad, the council said on Friday.
There was no immediate comment from Chad on the charges.
A Sudanese news outlet, Darfur 24 news, reported a minor clash Friday between Chadian and Sudanese forces in the area, saying three Sudanese soldiers were injured.
Sudanese General Mohammed Hamdan Dagalo, deputy head of the sovereign council, had traveled to Chad ahead of the attack for a meeting scheduled for Thursday with Chad’s interim president and head of the ruling transitional military council, Mahamat Idriss Deby.
He then returned to Darfur where he resided for weeks to help defuse tribal tensions and violence that have rocked the troubled region in recent months.
Dagalo attended the funerals of nomads killed on Friday and urged tribal leaders and residents of West Darfur to exercise restraint. On Saturday, he met with a joint Sudanese-Chadian committee and held talks with local officials and tribal leaders to prevent further escalation.
Sudan has called on Chad to find the attackers and return the looted cattle.