https://www.vice.com/en_us/article/pkeb9k/mass-panic-its-not-clear-that-colorados-mystery-drones-even-exist

It all started on December 23 when the Denver Post reported on “a band of large drones” flying over Phillips and Yuma counties in northeast Colorado. Phillips County Sheriff Thomas Elliott, as relayed by the Denver Post, provided an eerie description of the drone activity: “The drones stay about 200 feet to 300 feet in the air and fly steadily in squares of about 25 miles, he said. There are at least 17 drones; they emerge each night around 7 p.m. and disappear around 10 p.m.”

Nobody interviewed by news reporters, including local authorities, the Federal Aviation Administration, the Drug Enforcement Administration, the U.S. Army, the Department of Defense, or the Air Force said they knew what was going on.