Sgt. Sean McGregor Vanderwal, 25, was in a passenger vehicle that collided with the back of a semitrailer at about 2:20 a.m., KVUE-TV reported. The accident is under investigation, according to a Fort Hood news release.

Two other crash victims were hospitalized, KVUE reported. Further details were not available.

Vanderwal, of New Castle, Pennsylvania, began active-duty service in April 2014 and had been with 720th Military Police Battalion, 89th Military Police Brigade, at Fort Hood since February, the release states. He'd received the Army Achievement Medal and National Defense Service Medal, among other awards and decorations.