Washington ? A Fort Riley soldier died in Iraq Monday from a nonhostile gunshot wound, the Department of Defense said Tuesday.

Capt. James A. Shull, 32, of California, was assigned to Headquarters Battery, 4th Battalion, 1st Field Artillery Regiment, 1st Armored Division, and had been based at Fort Riley since March 2003. He was deployed to Iraq as a field artillery officer at the end of April.

The incident, which happened in Baghdad, is under investigation.

Shull is the 15th soldier from the Kansas post to die during U.S. military operations in Iraq.