So-called alien truth seekers are convinced they have rumbled a secret prototype craft in Google Earth images above a Florida aerospace company.
A video uploaded to YouTube suggests there has never been any craft like it publicly declared.
The footage zooms in to the remote site surrounded by swampland in West Palm Beach, Florida, when two arrow-shaped possible craft can be seen on the floor in separate areas.
Tyler Glockner, who runs the Secureteam10 conspiracy theory YouTube channel, said: "It looks like no sort of public aircraft that has ever been disclosed.
"It looks like a hypersonic craft or spacecraft of some type. Is this some sort of UFO?
"It is outside of a building belonging to aerospace company Pratt & Whitney, which develops engines for civilian and military projects so could be involved in secretive stuff.
To read more and view the video, click here.