Forty-two Malian soldiers were killed and 22 injured in an attack near the town of Tessit on Sunday, Mali's government said on Wednesday, blaming an Islamic State affiliate.
It was one of the deadliest attacks in recent years for the Malian army, which has been battling a decade-long insurgency by militant groups that have spread across West Africa's Sahel region.
"The Malian army units of Tessit... reacted vigorously to a complex and coordinated attack by armed terrorist groups, presumably from Islamic State in the Greater Sahara (ISGS), characterized by the use of drones, explosives, car bombs, and artillery," the government said in a statement.
Soldiers killed 37 combatants during several hours of heavy fighting, it added.