Both arrivals and departures have been halted at the airport due to an authorized drone located near one of its three runways, the advisory said.
At present, operations have resumed at the airport, according to the FAA dashboard.
The airspace near the airport is governed by Special Flights Rules established by the FAA. The rules prohibit flying unmanned aircraft within a 15-mile radius of Ronald Reagan National Airport and violators may be subject to civil and criminal liability.