WASHINGTON, Nov 4, 2025 (BSS/AFP) - Aviation authorities have ordered operations to resume at Washington's Reagan National Airport after an investigation into a bomb threat, US Transportation Secretary Sean Duffy said.

A ground stop had been ordered earlier Tuesday at the airport, which is close to the center of the US capital. The Federal Aviation Administration's stated reason for the halt was "due to security."

In a post on X, Duffy said a United Airlines flight coming in from Houston had received a bomb threat.

"The flight landed safely at DCA, passengers were evacuated, and law enforcement conducted a full search of the aircraft," Duffy said.

The airport "has received the all clear and operations have resumed," he added.

Video broadcast by local media showed a United Airlines plane moved to an auxiliary taxiway with several police vehicles nearby.

Reagan Airport said in a post on X that the plane's passengers were "offloaded and bussed to the terminal."