A navigator who ejected from an RAF Tornado fighter aircraft over Norfolk has been found dead in a field, the Ministry of Defence (MoD) confirms.
The aircraft landed later at its RAF Marham base and the ejector seat was found near the Sandringham estate.
The navigator's body was found at South Creake and was pronounced dead at the scene. He is said to have ejected while the aircraft was flying upside down.
The MoD said the aircraft was flown by a civilian crew from BAE Systems.
A tape of the pilot's conversation with controllers has been heard by the BBC.
It describes the moment the pilot realised his navigator had ejected from the aircraft. He told controllers he had not seen a parachute.
Rem Merrick, a spokesman from RAF Marham, said: "It is with deep sadness that the MoD has learned that the BAE Systems navigator who was involved in Wednesday's incident has died. Our thoughts are with his family.
"The cause of the incident is under investigation and we will not speculate at this stage.
"The Tornado GR4 landed safely at RAF Marham, where it is based. No other aircraft were involved."
BAE Systems are responsible for maintaining the Tornado fleet based at RAF Marham.