Clashes renewed Sunday morning between Awlad Omran and Al-Ziyoud groups of Mesiria tribe at Al-Dibab area in West Kordofan State, the paper said.
The latest clash came only three days after the conclusion of a reconciliation conference attended by the two groups' leaders, the paper said, quoting unidentified sources.
The reconciliation deal, which capped months of confrontations that killed and wounded hundreds from the two sides, has apparently not reached the area, the paper added.
A dispute over land ownership was blamed for the deadly clashes, Xinhua reported.
West Kordofan State has most of Sudan's oilfields. The oil-rich Abyei area, which is being disputed between Sudan and South Sudan, lies on part of its border.