According to the Associated Press, a U.S. soldier was killed while training at Yuma Proving Grounds in Arizona. The accident occurred when the soldiers were engaging in target practice with M-248 light machine guns. Authorities have not released additional details about the accident because it is still under investigation. It is possible, but not confirmed, that the accident was a result of a weapon’s malfunction. The soldier was a part of the 4th Brigade, 2nd Infantry Division. The name of the soldier has not yet been released.