Mystery continues to swirl over nearly a month of drone sightings over New Jersey, sparking fear among residents and furious debate about what the flying objects are - and if they are drones at all.
US authorities have been unable to provide definitive answers, saying only that the objects are not believed to pose a danger to the public or national security.
On Thursday, White House national security spokesman John Kirby told reporters that available images suggested that many of the reported drone sightings were actually manned aircraft.
But some lawmakers have criticised the government's handling of the drones and the lack of information available to the public.
The drones were initially spotted near the Raritan river, a waterway which feeds into the Round Valley Reservoir - the largest in New Jersey, the Associated Press reported.
Some of the flights were spotted near Picatinny Arsenal - a sensitive military research facility - as well as near President-elect Donald Trump's golf course in the town of Bedminster, New Jersey.