Officials say no survivors after a passenger jet crashed with an Army helicopter on approach to a Washington, D.C., airport. Here's what we know.

Through maps, videos, photos and radio transmissions, CNN is piecing together what occurred during the deadly, midair collision.

WASHINGTON (NewsNation) — The collision Wednesday night between a military helicopter and American Airlines Flight 5342 happened in some of the world’s most tightly controlled airspace, just ...