""DCA is one of the most demanding airports in the world. It also has what’s known as ‘helicopter alley’ with hundreds of police, military, news and rescue helicopters criss-crossing the Potomac River,

Ronald Reagan Washington National Airport (DCA) services both military helicopters and passenger planes every day.

There is at least one casualty after a helicopter crash at a major airport tonight. All runways have been shutdown and all departures and landings have been halted at the DCA Ronald Reagan Washington National Airport.

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,

Multiple fatalities have been reported after a horrific incident involving American Airlines flight 5342 and a U.S. Army UH-60 Black Hawk helicopter over

American Airlines Flight 5342 was scheduled to land at 9:03 p.m. on Wednesday at Ronald Reagan Washington National Airport. Air-traffic-control audio transmissions and flight-tracking data reviewed by

Investigators recovered the so-called black boxes from the plane, an American Airlines Bombardier jet carrying 60 passengers and four crew members, which collided with an Army Black Hawk helicopter and crashed into the Potomac River as it prepared to land at Ronald Reagan Washington National Airport on Wednesday night.

A regional American Airlines jet and a Black Hawk military helicopter collided over Washington, D.C., Wednesday night in the first major commercial airline crash since 2009. Three emergency care providers in the Washington, D.C., region have confirmed with ABC News that they have not yet received any patients from the crash.

The airspace around Washington, D.C., is congested and complex — a combination aviation experts have long worried could lead to catastrophe.

An Army Black Hawk helicopter collided with a regional jet near Ronald Reagan Washington National Airport on Wednesday evening, U.S. officials confirmed to ABC News.

The crash near Reagan National Airport has renewed questions about the airport's flight load, considering its small size, among other issues.

Sen. Tim Kaine (D-Va.) doubled down during an interview on his concerns about the Ronald Reagan Washington National Airport (DCA) space being overcrowded following the fatal collision between a military helicopter and an airline plane that killed 67 people.