In the three years before the deadly collision between an Army helicopter and an American Airlines flight near Reagan National Airport, at least two other pilots reported near-misses with helicopters while landing at the airport,

The crash disrupted flights at Reagan National Airport. Several dozen emergency crews could be seen at the scene of the crash, apparently just south of Reagan National Airport’s upper departure area,

An Army Black Hawk helicopter collided midair with an American Airlines flight from Wichita, Kansas, at Reagan National Airport on Wednesday.

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.

U.S. commercial pilot Rick Redfern was preparing to land at Reagan Washington National Airport about a decade ago when he spotted a bright red Coast Guard helicopter hovering about 50 feet (15 m) above the Potomac River.

Officials say an aircraft went down near Ronald Reagan National Airport, and all takeoffs and landings have been halted.

The National Transportation Safety Board has begun an investigation into the deadly mid-air collision between an American Eagle regional jet and a military helicopter that left all 67 people onboard the aircrafts dead.

At least one aircraft crashed Wednesday evening over the Potomac River near Ronald Reagan International Airport outside Washington, D.C., officials said, grounding all flights at the airport. The District of Columbia Fire and Emergency Medical Services Department reported in a social media post that a small aircraft crashed in the Potomac River in the "vicinity" of the airport.