A United States Army major general was killed on Tuesday by an Afghan soldier, shot at close range at a military training academy on the outskirts of Kabul, an official of the American-led coalition and Afghan media reported Tuesday. The officer was the highest-ranking member of the American military to die in hostilities in the Afghanistan war.

The coalition official, who spoke on condition of anonymity and would not release the name of the major general, said an unspecified number of other service members of the American-led coalition and Afghan soldiers, including a senior Afghan commander were also shot. Their conditions were not known.

Other details of the shooting were sketchy, and the coalition official would only confirm that “an incident” had taken place at the Afghan National Army Officer Academy.