Suspicious drone sightings in states across the Northeast in recent weeks may be coming from inside the United States, according to a military expert. Civilians and lawmakers have reported drone sightings in New Jersey, Pennsylvania, New York, Connecticut, Ohio and other states, with local and federal law enforcement offering little information about the aerial activity, most of which has been spotted at night. Some of the drones are as large as 6 feet in diameter, according to New Jersey state Rep. Dawn Fantasia, who was briefed on the matter last week. "The concern is definitely valid. One thing I do believe, I believe the government knows the source of these drones, and I believe the source of these drones is from inside the U.S., especially the larger drones," Col. William Dunn, president of Strategic Resilience Group, a government consulting group, told Fox News Digital.

The Port Authority of New York and New Jersey, which operates the Newark airport, said in a statement that agency officials met last week with counterparts from the FAA, FBI and Homeland Security Department "to review and enhance protocols for the rapid detection and interdiction of drones." A spokesman would not provide specifics and declined to say whether the airport has any anti-drone technology.