Authorities are investigating a midair collision between an American Airlines regional jet and a Black Hawk helicopter over the Potomac River near Reagan National Airport in Washington, D.C. Follow along for live updates,

Authorities said all aboard the flight died after the fiery collision with the helicopter broke the aircraft apart and sent it plunging in three sections into the icy Potomac River below. Three U.S. Army service members aboard the helicopter also died,

The Bombardier CRJ700 regional jet and Black Hawk helicopter both crashed into the icy Potomac River after colliding midair.