The Army Corps of Engineers is expected to begin removing wreckage following the deadly collision of an Army helicopter and a passenger plane.

Crews started removing Monday the wreckage of the American Airlines plane that collided with an Army Black Hawk helicopter over Washington, D.C., and crashed into the Potomac River last week.One of the plane's two engines was seen being lifted from the river Monday morning,

An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport after colliding with a U.S. Army Black Hawk helicopter, Wednesday night, prompting a multi-agency search-and-rescue operation, according to officials.

Seven people died in the crash, including a girl who had been receiving medical treatment at Shriners children’s hospital.