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,

There were 64 passengers aboard the plane, and three Army soldiers in the helicopter, according to officials. Here's a look at what we know about the victims.