The United States service member who was killed alongside three defense contractors when their small plane crashed in the Philippines has been identified as a Marine from California.

Sgt. Jacob M. Durham, 22, died in Thursday's accident during a routine mission while aboard a UC-12W Beechcraft King Air 350 in support of U.S.- Philippine security cooperation activities, according to the United States Indo-Pacific Command.

Sgt. Jacob M. Durham, 22, of Long Beach, died in the crash of an aircraft that was conducting a routine mission, Camp Pendleton, Calif., officials said.

One United States service member and three defense contractors are dead after a small airplane crashed in the Philippines on Thursday, officials said.

The plane was conducting intelligence and reconnaissance support “at the request of our Philippine allies,” according to the U.S. military.