A jet carrying 60 passengers and four crew members 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.

The U.S. Army said the helicopter that collided with a passenger jet was a UH-60 Blackhawk based at Fort Belvoir in Virginia. A crew of three soldiers were onboard the helicopter, an Army official said. The helicopter was on a training flight.

A 60-passenger jet collided midair with a Black Hawk helicopter near Reagan National Airport and crashed into the Potomac River.