An American Airlines regional jet collided with a U.S. Army Black Hawk helicopter on Wednesday night. Both aircraft plunged into the Potomac River near Reagan Airport.

Crews are on the scene on the Potomac River to retrieve the submerged wreckage of an airliner and an Army helicopter that collided midair in the deadliest U.S. air disaster since 2001.

An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport after ...