A preliminary safety report from the Federal Aviation Administration reportedly found that air traffic control staffing was abnormally low at Ronald Reagan Washington National Airport on the evening of Wednesday, Jan. 29, according to The New York Times, which obtained a copy of the report.

The report, reviewed by The New York Times, said that one controller was communicating with both helicopters and planes. Those jobs are typically assigned to two people, not one.

Investigators analyze flight data to understand the crash between an American Airlines jet and a military helicopter and exactly what was going on before disaster struck.

Political leaders had warned about the dangers of Ronald Reagan Washington National Airport in Washington, D.C. months before an American Airlines flight collided with a U.S. Army Black Hawk helicopter on its approach to the airport.

There was no immediate word on casualties, but all takeoffs and landings from the airport near Washington have been halted.

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.

Airport preferred by Washington lawmakers and lobbyists lies in some of the most congested airspace in the country.

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,

Deadly mid-air collision over Washington, D.C., reignites concerns over air traffic congestion and safety risks at Ronald Reagan Washington National Airport

A retired pilot gives a first-hand view of what it’s like to land at Ronald Reagan Washington National Airport.Chuck Smith says he has made that approach and landing hundreds of times in his career. He shared a video with 12 On Your Side showing what it looks like to fly near Washington,

Two New England mothers and their children were among the 67 victims killed in the midair collision between an Army helicopter and an American Airlines flight over Ronald Reagan National Airport Wednesday night.