The Federal Aviation Administration (FAA) announced on Twitter on Sunday evening that all airports in the Washington, D.C. area had resumed operations, about an hour after flights were suspended due to air traffic control issues.

The FAA has announced a suspension and ground stop for all incoming flights due to a communication system problem at the Potomac Terminal Radar Approach Control (TRACON) facility. Shortly after, the agency announced that flights to Washington, DC from New York, the West Coast, the Midwest, and Florida had resumed.

The FAA has suspended departures to airports in the DC area while communications systems are being repaired at the Potomac Terminal’s radar approach control facility. The facility has been switched to a backup system.

— FAA ✈️ (@FAANews) June 25, 2023

The FAA said all communications were handled by backup systems while repairs were made. During repairs, all departing flights from Ronald Reagan Washington National Airport (DCA) and Dulles International Airport (IAD) were subject to a ground stop by the Associated Press. report. The ground stop also affected Baltimore/Washington International Airport (BWI) and Richmond International Airport (RIC). according to to FOX5. (Related: Biden Appoints Acting FAA Administrator With No Aviation Industry Experience: Report)

An hour after the ground stop order, the FAA announced that departures had resumed as repairs to the communications power panel were completed.

Departures to airports in the Washington, DC area have resumed, and communications power panel repairs have been completed.

Backup systems handled communications securely during repairs.

Normal business has resumed.

— FAA ✈️ (@FAANews) June 25, 2023

Some news outlets said the equipment problem was due to a fire in the control tower, but FOX5 reported that FAA officials said there was no fire.