U.S. authorities said on Thursday it was not yet clear why a regional jet and a U.S. Army helicopter collided at a Washington ...

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

Flight map shows route of American Airlines plane before deadly crash in Washington DC - Sixty-seven feared dead after crash ...

The collision Wednesday night between a military helicopter and American Airlines Flight 5342 happened in some of the world’s ...

Investigators say there are likely no survivors in the deadly aircraft collision that occurred Wednesday evening above the ...