New Jersey officials are expressing frustration after the White House revealed who was allegedly behind the mysterious drone sightings late last year.

The Mercer County Sheriff reports his office is aware of several drone sightings. The Mercer County Sheriff’s Office shared a release on Monday night regarding a “significant amount of drone sightings over the past few nights.

In Tuesday's briefing, White House press secretary Karoline Leavitt said the FAA authorized drones that had been reported across the Northeast. Sheriff Shaun Golden, of Monmouth County, New Jersey, says he's disappointed resources were wasted on investigating the drones but that there are still questions surrounding the sightings.