The Federal Aviation Administration (FAA) is planning to investigate recent suspicious drone activity over north-east Colorado and south-west Nebraska.
Numerous residents have reported seeing “unexplained” swarms numbering up to 30 drones, always at night, over the past two weeks, according to a report in the New York Times.
The drones are not linked to any private enterprise, nor are they US government drones, which is why police and the FAA are taking the matter so seriously.
Reports differ, but suggest that the drones fly in the same formation every night, between the hours of 17:00 and 22:00.
Some reports describe them as having wingspans of more than six feet.
If recent FAA proposals are successful, drones such as these would be easily identifiable to the FAA as well as police, solving the problem with relative ease.
Yuma County Sheriff Todd Combs has confirmed that the drones are operating within current US law, so residents should not fear their presence.