Investigators are searching for answers after the midair collision that killed 67 people near Washington, D.C.

The crash occurred in a difficult to navigate airspace. Flight data, video and air traffic control audio reveal details leading up to tragedy.

Officials say no survivors after a passenger jet crashed with an Army helicopter on approach to a Washington, D.C., airport. Here's what we know.

An American Airlines jet and a U.S. Army helicopter plunged into the Potomac River after a midair collision Wednesday night ...