An American Airlines regional jet went down in the Potomac River near Washington, D.C.'s Ronald Reagan Washington National Airport after colliding with a U.S. Army Black Hawk helicopter on Wednesday night, with no survivors expected.

The National Transportation Safety Board says it has recovered a cockpit voice recorder and flight data recorder from the American Airlines plane that collided with an Army Black Hawk helicopter near Reagan National Airport late Wednesday.

Sixty passengers and four crew members from the plane and three Black Hawk helicopter personnel are feared dead as a recovery mission is underway.