The Federal Aviation Administration has imposed new temporary flight restrictions on drones over parts of nine additional New Jersey towns.

For weeks, hundreds of New Jersey residents have reported seeing mystery drones in the sky, leading to fears there is a national security threat in the US state.

The Federal Aviation Administration continued its drone crackdown Friday, adding 29 cities across New York to the region’s temporary ban of unapproved drones for security concerns, as officials investigate reported drone sightings in the region amid public curiosity about the sightings.

As a New Jersey sheriff reports that his department's own 'industrial grade' drone could not keep pace with the mystery draft, major law enforcement agencies insist there's no cause for alarm