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.

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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.

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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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