Southwest's CEO Bob Jordan said "our hearts go out" to people on the American Airlines flight involved in Wednesday night’s midair collision with a helicopter in the nation’s capital.

An American Airlines regional jet went down in the Potomac River near Washington, D.C.'s Ronald Reagan Washington National Airport after colliding with a U.S. Army Black Hawk helicopter on Wednesday night, with no survivors expected.

An American Airlines plane and a U.S. Army helicopter collided near Reagan National Airport and crashed into the Potomac River, according to officials.

At least 64 people were on board the American Airlines flight that collided with a military helicopter over the Potomac River in Washington D.C.