Passengers deboarded a United plane and were bused to the terminal, Reagan Airport said on social media, NBC News reported.

Flight operations are currently being held, the airport said.

Departures to DCA were grounded due to security, a notice from the Federal Aviation Administration said.

“The FAA is aware of a reported security issue on an aircraft at Reagan Washington National Airport (DCA). Passengers have been removed and the aircraft is away from the terminal while authorities investigate,” the FAA said in a statement.

Video shows a crowd of people leaving a United Airlines plane, which is stopped near the Potomac River and away from the terminal. Passengers were seen walking across a tarmac where at least two buses appeared to be waiting. Multiple law enforcement vehicles were seen near the buses as people boarded.

MNA