The Pentagon has released a new batch of declassified UFO documents, including a shocking eyewitness account detailing how the military recovered the wreckage of a spaceship and alien bodies.

The report made public on Friday included testimony from a military officer, whose name was redacted, who claimed he was present at the famous Roswell UFO incident in 1947 and was shown the spacecraft in a hangar known as 'Building 84.'

The alleged Roswell coverup has been one of the most famous UFO cases in history, with the military initially releasing a statement on July 8, 1947, saying a 'flying disc' had been recovered before changing their story to claim the wreckage came from a weather balloon. 

The officer is believed to be Roswell Army Air Force Base Public Information Officer Walter G Haut, who confirmed that the US had recovered an egg-shaped craft and multiple dead bodies from a New Mexico crash site in early July of that year.

'I am convinced that what I personally observed was some type of craft and its crew from outer space,' the witness said in a statement given in 2002 and kept secret by the Pentagon.

The officer added that this wreckage and the aliens were taken to a guarded hangar where he was allowed to see the craft, described as being roughly 12 to 15 feet long and six feet wide with a metallic surface.

It had no windows, wings, tail or landing gear, and was composed of a strange metal foil described as 'paper thin yet extremely strong.'

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