A gasp can be heard on air traffic control audio as an American Airlines plane and a US Army helicopter collided in Washington DC on Wednesday, 29 January.
American Eagle flight 5342 – carrying 64 people – and the military Black Hawk helicopter – carrying three people – crashed at approximately 8:53 p.m.
At least 40 bodies have been recovered from the Potomac River.
Two “black boxes” have also been recovered with a cockpit voice recorder and a flight data recorder have been taken for lab analysis.
A gasp and "Did you see that?" can be heard in the audio.