Washington -- A report released by the CIA says the U2 spy plane program was responsible for a large number of UFO sightings in the 1950's and 60's.
The agency tweeted a link to the report Wednesday afternoon, which not only provided details on the inner workings of the 20 year program, but how it was responsible for many UFO sightings reported across the country.
The report shows the investigators from Project BLUE BOOK, the Air Force program tasked with investigating UFO reports, attempted to explain UFO sightings by linking them to natural phenomena. Investigators regularly called the CIA's project staff in Washington to check the reported UFO sightings against the U2's flight logs.
This enabled investigators to eliminate the majority of UFO reports. However, they could not reveal to the witnesses who contacted BLUE BOOK the true cause of those sightings.
You can read the full report by clicking here. A copy is also attached to this article.