Crews are on the scene on the Potomac River to retrieve the submerged wreckage of an airliner and an Army helicopter.

Black boxes from both the airplane and helicopter involved in last week’s deadly crash have been recovered by the NTSB as salvage crews continue to pull the wreckage from the Potomac River. NBC News Correspondent Aaron Gilchrist reports from Arlington,

A large portion of the fuselage from the American Eagle passenger plane that crashed with an Army Black Hawk helicopter in Washington, D.C., last week was pulled from the Potomac River on Monday, officials said.