Thursday, the White House told reporters that they had not gathered any evidence that reported swarms of drones flying off the Eastern Seaboard of the United States pose any type of national security threat.

The U.S. government has no evidence that drone sightings reported in New Jersey pose a national security or a public safety threat, White House national security spokesperson John Kirby said on Thursday.

Dozens of mysterious nighttime flights started last month and have raised growing concern among residents and officials.