The Pentagon has admitted to holding and testing wreckage from UFO crashes in a bombshell Freedom of Information letter, shared with The Sun.

Researcher Anthony Bragalia wrote to the Defense Intelligence Agency (DIA) requesting details of all UFO material, which they hold and results of any tests they had been carrying out on it.

He wrote: "This could include physical debris recovered by personnel of the Department of Defense as residue, flotsam, shot-off material or crashed material from UAPS [unidentified aerial phenomenon] or unidentified flying objects."

In the response, shared with The Sun, the DIA released 154 pages of test results that includes reports on a mysterious "memory" metal called Nitinol, which remembers its original shape when folded.

Bragalia said it was a "stunning admission" from the US government and the documents reveal that some of the retrieved debris possesses "extraordinary capabilities" including the potential to make things invisible or even slow down the speed of light.

He told The Sun: "The Pentagon has admitted to holding and testing anomalous debris from UFOs.

Nothing of any substance. Nitinol is a man made alloy. Much ado about nothing. To read more, click here.