A passenger jet has collided with a helicopter while landing at Ronald Reagan National Airport near Washington. Watch live coverage from WJLA in Washington, D.C.

A multi-agency search and rescue operation is underway in the Potomac River after a small American Airlines aircraft collided with an Army helicopter near Reagan National Airport, authorities confirmed.

The American Airlines plane operating as American Eagle Flight 5342 collided with an Army Black Hawk helicopter near Reagan National Airport.

A devastating mid-air collision near Reagan National Airport in Washington, D.C., involving an American Airlines jet carrying 64 passengers and a US Army Black Hawk helicopter with three aboard, has resulted in no expected survivors.