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,

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

A salvage operation is now underway to recover the wreckage from last week's deadly mid-air collision involving an American Airlines jet and a U.S. military helicopter.