The US Central Intelligence Agency has admitted that half of UFO sightings in the 1950s and 1960s were the country’s U-2 spy planes.
“Reports of unusual activity in the skies in the ’50s? It was us,” the CIA said in a tweet on Monday.
The agency explained that it was testing the spy planes at altitudes of over 60,000 feet. The figure was not believable at that time.
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According to the spy agency, the document explaining that scenario was the most widely read document released this year by the CIA from their database.
The U-2 spy plane is flown by the United States Air Force now.
Read More: CIA says UFO sightings in past were US spy planes
