An American Airlines jet and a U.S. Army helicopter plunged into the Potomac River after a midair collision Wednesday night near Reagan National Airport outside Washington, D.C.

An American Airlines jet and a U.S. Army helicopter plunged into the Potomac River after a midair collision Wednesday night near Reagan National Airport outside Washington, D.C. Officials said they believed none of the 64 people aboard the plane, or the three U.S. service members aboard the helicopter, survived the crash.