F-16 Fighting Falcons with the U.S. Air Force Aerial Demonstration Squadron Thunderbirds perform a 5-ship formation after refueling from a KC-135 Stratotanker assigned to the 92nd Air Refueling Wing over Glacier National Park, Montana.
Pilots assigned to the US Navy flight demonstration squadron, the Blue Angels, join their F/A-18 Hornet strike fighter over the Gulf of Mexico into the diamond formation while approaching Naval Air Station Pensacola.
The cause of the crash wasn't immediately released, but a board of officers will convene to investigate the incident. Base officials were not available for comment late Monday.
"Our biggest priority at this time is caring for the family and friends of our Airmen," Col. Michelle Pryor, 47th Flying Training Wing vice commander, said in a statement.
"We are a close knit family, and when a tragedy like this occurs every member of the U.S. Armed Forces feels it. Our people take top priority, and we are committed to ensuring their safety and security."
The plane is a twin-engine supersonic jet primarily used for training, according to the Air Force website.
A Val Verde hospital spokesperson could not be reached about the condition of the second person involved the crash.
(Reporting by Chris Kenning; Editing by Michael Perry)