By Ayana Archie
Authorities are continuing to investigate a midair collision between an American Airlines airliner and an Army helicopter, in which the aircraft fell into the icy Potomac River near Washington, D.C.’s Reagan National Airport on Wednesday night.
All 67 passengers, crew members and Army service members are believed to have died.
Here is what we know so far.
How did it happen?
A regional American Airlines jet carrying 60 passengers and four crew members traveling from Wichita, Kan., was moments from landing when it collided with an Army Blackhawk helicopter carrying three U.S. service members, shortly before 9 p.m. ET.