The apocalypse. An air raid siren. An alien invasion. A giant mosquito buzzing in the ear.
These were just some of the ways residents of inner Sydney described the noise that woke them about 2am on Monday.
The sustained droning sound that could be heard across a 10-kilometre radius for 16 long minutes was coming from a malfunctioning horn on a train at the Eveleigh rail yards next to Redfern station.
Angry and confused residents piled out onto the streets of Chippendale, Redfern, Ultimo, Surry Hills and Glebe when the horn started to sound.
"It sounded like a car alarm going off inside my ear," said Redfern resident Celia Finch. "There was no way anyone could sleep with that going off."
Chippendale resident Joe Engstrom walked out into the street in his briefs to find the area filled with his confused neighbours.
"I was kind of excited, because it felt like the opening scene of some supernatural apocalypse movie," Mr Engstrom said.
Others took to social media to voice their frustration:
The persistent drone "felt like it was in my head," Darlington resident Mia Pinjuh said. "I couldn't sleep and it has definitely affected productivity today."
A Sydney Trains employee at Redfern station confirmed that the noise came from maintenance work being done at Eveleigh rail yards at 2am.
City of Sydney said eight complaints were received between 2.06am and 2.32am about a loud horn-like sound reportedly coming from Redfern, Eveleigh and Ultimo.
City rangers attended the locations, but could not find the source of the noise.
Sydney Trains has been contacted for comment.
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