Gold miners at an informal mining site in the mountainous Kouri Bougoudi district, north Chad broke into deadly clashes, the interim government disclosed Wednesday.
The violence broke out near the border with Libya, where the army has been fighting rebel groups for over a decade.
Human lives were lost and several people were injured, the government said in a statement but gave no numbers.
The fighting was between members of the Tama ethnic group and an Arab community, local media said.
Chad is no known for frequent deadly inter-community clashes between sedentary farmers and nomadic herders.