Lisa Kruse

The mystery of the unidentified drones deepened Tuesday, as federal officials admitted that they don’t know the source or origin of the drones.

About 100 mystery craft sightings have been identified as warranting further investigation, FBI officials confirmed.

Between conflicting government briefings and a ceaseless rumor mill on social media, it's easier to identify what is still unknown about the drones.

Ocean County Sheriff Michael Mastronardy has sent a drone unit out to scout the sky for unidentified aircraft.

Donald Trump's press secretary Karoline Leavitt said the drones were for research purposes and 'not the enemy.'

In a statement, President Trump said the drone flights that had gripped New Jersey were not enemy or foreign crafts.