WASHINGTON, Dec 12, (AP): The large mysterious drones reported flying over parts of New Jersey in recent weeks appear to avoid detection by traditional methods such as helicopter and radio, according to a state lawmaker briefed Wednesday by the Department of Homeland Security. In a post on the social media platform X, Assemblywoman Dawn Fantasia described the drones as up to 6 feet in diameter and sometimes traveling with their lights switched off.

The Morris County Republican was among several state and local lawmakers who met with state police and Homeland Security officials to discuss the spate of sightings that range from the New York City area through New Jersey and westward into parts of Pennsylvania, including over Philadelphia. The devices do not appear to be being flown by hobbyists, Fantasia wrote.

Dozens of mysterious nighttime flights started last month and have raised growing concern among residents and officials. Part of the worry stems from the flying objects initially being spotted near the Picatinny Arsenal, a U.S. military research and manufacturing facility; and over President-elect Donald Trump’s golf course in Bedminster.

Drones are legal in New Jersey for recreational and commercial use, but they are subject to local and Federal Aviation Administration regulations and flight restrictions. Operators must be FAA certified. Most, but not all, of the drones spotted in New Jersey were larger than those typically used by hobbyists. The number of sightings has increased in recent days, though officials say many of the objects seen may have been planes rather than drones.

It’s also possible that a single drone has been reported more than once. Gov Phil Murphy and law enforcement officials have stressed that the drones don’t appear to threaten public safety. The FBI has been investigating and has asked residents to share any videos, photos or other information they may have. Two Republican Jersey Shore-area congressmen, US Reps Chris Smith and Jeff Van Drew, have called on the military to shoot down the drones.

Smith said a Coast Guard commanding officer briefed him on an incident over the weekend in which a dozen drones followed a motorized Coast Guard lifeboat "in close pursuit” near Barnegat Light and Island Beach State Park in Ocean County. Coast Guard Lt Luke Pinneo told The Associated Press Wednesday "that multiple low-altitude aircraft were observed in vicinity of one of our vessels near Island Beach State Park.”