According to witnesses, UFOs had sexual intercourse with humans and even left one lady pregnant.

The outrageous assertions were made in leaked Pentagon papers obtained by The Sun from the Defense Intelligence Agency (DIA) as part of a massive Freedom of Information Act request.

The paper, titled Anomalous Acute And Subacute Field Effects on Human and Biological Tissues, looks at damage caused by “anomalous advanced aircraft systems” on “human observers.”

It explores the health effects of paranormal encounters on humans.

The book includes a “valuable database” developed by the US-based civilian research organisation MUFON that lists the biological impacts of UFO encounters on individuals as well as their frequency.

This includes unusual experiences such as “apparent abduction,” “unaccounted for pregnancy,” sexual encounters, telepathy, and perceived teleportation.

According to the study, there have been five recorded sexual interactions between UFOs and humans.

The paper, written for the DIA, goes on to suggest that UFO encounters can cause radiation burns, cognitive issues, and nerve damage in witnesses.

It cautions that such things may pose a “threat to US interests.”

Humans have been reported to have been wounded as a result of “exposures to anomalous vehicles, particularly while flying and in close proximity,” according to the report.

According to the paper, these injuries are frequently caused by electromagnetic radiation and are linked to “energy related propulsion systems.”

It includes ailments such as heating and burns from radiation, brain damage, and the ability to affect people’s nerves.