Authorities are investigating a midair collision an American Airlines regional jet and a military helicopter near Reagan ...

Everyone aboard an American Airlines jet carrying 60 passengers and four crew members that collided with an Army helicopter ...

The moments before and after a crash between an American Airlines passenger jet and a military helicopter are detailed in air ...

Transmissions show early instruction for the Army helicopter to avoid a passenger jet.

Two press conferences were held Thursday morning, one in D.C. and one in Wichita, Kansas. Watch the livestream here.