The video released by conspiracy theory YouTube channel ikillMasons4fun, appears to show the wreckage of what is alleged to be from a UFO recovered from the notorious Roswell crash site in 1947, according to reports.
Roswell has been at the heart of the UFO scene since in July 1947 the military sensationally announced in a press release it had found the remains of a crashed flying saucer in the desert nearby.
But the following day it retracted the statement, saying it was in fact a damaged US Air Force air balloon.
Witnesses later came forward to say there had been alien bodies within the “crashed craft”, which along with the wreckage were then taken to a mysterious top-secret military base.
There have been many theories about what actually happened, but an official government probe into what happened concluded it was a secret spy balloon being tested.
It remains one of the world’s biggest conspiracy theories.
The new video has been released as if it is actual leaked footage filmed by the US military at the time of the crash, Dailystar.co.uk reports.
In it, a mysterious individual holds up metal plates that appear to show handprints with six fingers.
However, Express.co.uk can reveal it is nothing more than part of the infamous “alien autopsy” hoax video released in 1995.
The video was uploaded to YouTube with the title: “Roswell Why Hellenic on UFO.”
It states: “Thousands of years ago there was greater technology than today.
“Everyone was speaking Hellenic (Greek) until the six-fingered Nephilim were born.”
But, it has just been cut from the original fake film, which also showed men in white coats apparently dissecting an alien from the alleged crash.
Although it is a proven hoax, its producer Ray Santilli, 58, insists it was based on “real poor quality” genuine footage he received from the cameraman in the US in 1992.
The alien autopsy film was propelled back into the headlines in September after Spyros Melaris, who was hired by Mr Santilli and film producer Gary Shoefield to make the black and white film, told the story of his involvement in a one-man West End show.
Mr Melaris revealed how the video was produced inside a north London flat, thousands of miles from the secret US base it was purporting to be in.
He explained how the “dead alien” in the 17-minute film, which has been viewed by millions of people across the globe, was created by a sculptor called John Humphreys, who was a special effects expert who had worked on the sets of Dr Who.
The 16mm film was then spliced with an original Pathe newsreel of a 1947 college baseball match in Roswell to help convince experts from Kodak it could be real, he said.
Scott Brando, who runs debunking website ufoofinterest.org, viewed the edited version released by ikillMasons4fun and confirmed it was from the original hoax.
He said: “Sure, of course. It’s the same Santilli’s footage already published.”
but to the disappointment of alien hunters the 1995 footage was later branded an elaborate hoax.