WASHINGTON (Reuters) - The Ronald Reagan National Airport said late on Wednesday that all takeoffs and landings were halted at the airport in the Washington region as emergency personnel responded to an aircraft incident.

A small aircraft is down in the Potomac River near Ronald Reagan Washington National Airport and fireboats were on the scene, the Washington fire department said. The airport said late on Wednesday that all takeoffs and landings were halted at the airport as emergency personnel responded to an aircraft incident.

Ronald Reagan Washington National Airport is closed, according to an FAA alert posted Wednesday night. A ground stop will prevent planes from landing at the airport through at least 5 a.m. Thursday morning,