A plane crash over the Potomac River involving an American Airlines passenger jet and a Black Hawk chopper claimed multiple ...

The collision occurred in airspace that is difficult to navigate. Flight data, video and air traffic control audio show how the tragedy unfolded.

He indicated 27 bodies had been recovered from the airplane, and one from the helicopter.

A D.C. official said the Black Hawk helicopter was found upside down and the American Airlines plane in pieces in the Potomac River.