The U.S. military is investigating how a soldier was injured in a “live fire” training exercise this week at Fort Stewart in South Georgia.

Fort Stewart spokesman Kevin Larson declined to identify the soldier or say how the injury occurred Wednesday evening, citing the continuing investigation. But Larson confirmed the soldier is a member of the Fort-Stewart-based 3rd Infantry Division and remains hospitalized in critical condition.

Fort Stewart is located about 40 miles southwest of Savannah.