ARLINGTON, Va. (AP) — A passenger jet collided Wednesday with an Army helicopter while landing at Ronald Reagan National Airport near Washington, prompting a large search-and-rescue operation in the nearby Potomac River.

An American Airlines jet and an Army helicopter collided over Washington, D.C., Wednesday night. The number of casualties is unclear and a search-and-rescue mission is ongoing.

By David Shepardson, Trevor Hunnicutt and Brad Brooks WASHINGTON (Reuters) -An American Airlines regional passenger jet and a U.S. Army Black Hawk helicopter crashed into the frigid Potomac River after a midair collision near Reagan Washington National Airport on Wednesday night,