It raises fresh questions as to why the two aircraft collided nearly head-on with each other killing all onboard.

Latest news and live updates after an American Airline jet collided with a Black Hawk helicopter over the Potomac River.

The National Transportation Safety Board will hold a briefing on its investigation into the crash between an American Airlines plane and a U.S. Army Blackhawk helicopter. You can watch live below ...

As investigators look into the cause of Wednesday night's plane crash, pilots share their initial take on the collision.