What we know about mysterious drone sightings

Mysterious flying objects overhead. Concern and confusion. And calls for military intervention.

This isn’t the plot of “War of the Worlds,” but rather the result of numerous possible drone sightings in recent weeks. The flying objects have been spotted over residential neighborhoods, restricted sites and critical infrastructure.

The sightings have put intense pressure on federal agencies to provide more information about the aircraft, as officials have urged calm and emphasized there is no evidence suggesting the sightings pose a security threat.

“I want to assure the American public that we are on it,” Department of Homeland Security Secretary Alejandro Mayorkas said Sunday on ABC’s “This Week.”