The Boeing T-45 Goshawk training aircraft with a crew of two did not return to base after training flight in the state of Tennessee, US Navy reported Sunday.
Naval officials announced late Sunday night that such an aircraft had gone missing, but could not confirm it had crashed.
A US Navy news release said: "Two pilots were aboard the aircraft, an instructor and a student".
The Navy confirmed it was investigating reports of a plane crash on Twitter.
Helicopters from the University of Tennessee Medical Centre and the Knox County Sheriff's Office flew over the area to search for parachutes but did not find any. The status of both people is unknown, the statement said.
The call came in around 4:30 p.m.
#BREAKING. More to follow.
An investigation will commence to determine the cause of the crash.
Investigators told local media that civilians were being kept three miles away from the crash site due to reports the plane had explosives on board as well. Not Callico Plains, TN.
The Navy did not respond to BuzzFeed News' requests for additional information.
The U.S. National Guard says it will be in the area searching for the jet Monday.
Dispatch says they do not have officers on the scene as of yet. We'll continue to bring you updates as we receive them.