WASHINGTON, D.C. (CBSNEWS.COM) — In December 2017 and March 2018, The New York Times released three allegedly declassified videos showing U.S. Navy pilots trailing some unidentified flying objects.

The mystery crafts moved at hypersonic speeds, flying tens of thousands of feet above the Earth with no distinct wings, engines or visible signs of propulsion whatsoever.

The video had audio of pilots who were confused and unable to describe what they were looking at.

Were they flying saucers? Incredibly high-tech drones? The pilots had no idea — and, according to a recent statement from Navy intelligence officials, neither does the U.S. government.

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