One of the main attractions set for this year's Farnborough Air Show may not appear after it was grounded in America.
An F-35 Lightning II fighter appearance at the Farnborough Airport event was announced by air show organisers in early May.
However, the United States Department of the Air Force and Department of the Navy has grounded all 97 planes after one caught fire on a runway at Eglin Air Force Base in Florida on June 23.
Pentagon press secretary Rear Admiral John Kirby said: "The root cause of the incident remains under investigation.
"Additional inspections of F-35 engines have been ordered, and return to flight will be determined based on inspection results and analysis of engineering data."
As well as the Farnborough Air Show, the F-35 is also due to appear at the Royal International Air Tattoo (RIAT) at RAF Fairford from Friday (July 11).
Preparations for the plane's appearance in the UK - its first time outside America - are still continuing with a decision expected imminently.
The F-35s are currently undergoing testing with the first due to become operational with the RAF in 2018.
They are also due to be tested on the new aircraft carrier, HMS Queen Elizabeth, the same year.
The F-35 is due to be one of the star attractions at this year's air show.
More on the Farnborough Air Show:
Farnborough Air Show by numbers: Facts and figures
Farnborough Air Show countdown: A look back at 2004
Pub putting on charity days during Farnborough Air Show
Farnborough Airshow aids Aerobility's disability aim
Airshow 2012 display wows crowds at Farnborough Airport
Cars to star alongside planes at Farnborough Air Show
Farnborough Air Show countdown: A look back at 2008
Air show ticket offer divides Farnborough residents
Road closure plans announced ahead of Farnborough Air Show
Politicians, royalty and entrepreneurs enjoy airshow
Free ticket withdrawal sours air show neighbour relations
Airshow taxi share scheme takes off after council approval
Farnborough Air Show countdown: A look back at 2010
Farnborough Air Show countdown: A look back at 1998
How to get to the Farnborough Air Show 2014
Farnborough Air Show 2014: what else can visitors expect?
Farnborough Air Show countdown: A look back at 1996
Farnborough Air Show countdown: The 1970s and 1980s
F-35 Lightning II to appear at Farnborough Air Show
Farnborough Air Show countdown: The 1950s and 1960s
Farnborough Air Show countdown: A look back at 1994
What to expect at this year's Farnborough Air Show