Enigma Labs, a company that researches unidentified aerial vehicle sightings, reports it has received over 650+ drone-related sightings since Nov. 20 with a majority in New Jersey. But there are other states with sightings, including New York, Delaware, Pennsylvania and Virginia.

More mysterious drone sightings have been reported in Northeast, in a strange surge after the Federal Aviation Administration lifted temporary flight restrictions following thousands of reported drone sightings late last year.

The mysterious drones that sparked a frenzy in the Northeast seem to have returned after the FAA’s temporary restrictions in parts of New Jersey and New York expired. NBC’s Sam Brock reports for TODAY.