‘We are on it,’ says US homeland security secretary as anxieties surge amid lack of official information

Alejandro Mayorkas, the US homeland security secretary, has said federal authorities “know of no foreign involvement” in the mass drone sightings across the nation’s north-east region, though social and political anxieties nonetheless continued surging over the weekend amid a lack of official information.

“I want to assure the American public that we are on it,” Mayorkas said.