Watch: Evacuation panic at JFK airport caught on camera

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Video has emerged showing the moments a false alarm spread through New York's John F. Kennedy International Airport on Sunday night, causing people to run and take cover fearing there had been gunfire.

The video was shot by Albert Salas, 31, a Brooklyn-based freelance cinematographer and native of Barcelona, Spain.

He said that when he heard a series of loud bangs at Terminal 1 at about 10:10 p.m. (0210 GMT Monday) while waiting for a flight to London, he was sure they were gunshots.

One such loud bang is audible in his video, after which some passengers begin frantically running, while others are already taking cover on the ground.

Salas also described the moments after the incident, saying that about 2,000 people had to wait outside the airport for more than two hours while police performed a sweep with sniffer dogs.

Shortly before Salas recorded his video, an anonymous 911 call from a woman at 9:34 p.m., (0134 GMT Monday) reported gunshots in terminal 8.

Police said that boisterous celebrations over an Olympic victory by the world's fastest man Usain Bolt might have led to a false alarm about gunfire and the ensuing panicked evacuation of the airport.

However, investigators were unsure exactly how the commotion spread across the airport campus to Terminal 1, where rumors about a shooter, combined with the sound of alarms and sight of armed police, convinced some people that an attack was under way