PENSACOLA, Fla. (AP) -- The U.S. Air Force says an airman died during survival training at Pensacola Naval Air Station.
The Air Force confirmed Wednesday that Maj. Garrett Knowlan died last week during a four-day, water-survival course.
Knowlan was a 2002 graduate of the Air Force Academy and a 2010 graduate of the Air Force Test Pilot School.
Military officials did not immediately provide other details about Knowlan's death. They say an investigation is underway.