Australia: Sydney building engulfed by major fire (VIDEO)

A large fire engulfed a seven-story building in Sydney, Australia, on Thursday, causing parts of the structure to collapse and sweeping smoke and ash around the city.

Authorities said more than 50 people were evacuated from the area close to the city's Central Station.

More than 120 firefighters and 35 fire trucks have been deployed to contain the blaze.

Fire and Rescue NSW — referring to the state of New South Wales — said the building inferno initially spread to neighboring buildings, including residential apartments.

"The fire is now effectively contained but it will be a very substantial and prolonged duration of firefighting to extinguish the fire completely," Deputy Commissioner Jeremy Fewtrell said.

One firefighter was treated by paramedics for a burn to his arm but there were no reports of injuries.

Unoccupied building was planned hotel

The building in Sydney's Surry Hills district was an old hat factory that was planned to be converted into a hotel, according to a recent development application lodged with city authorities.

Emergency services believe the building itself was vacant when the blaze started.

A major fire broke out in a seven-story building in central Sydney, Australia. More than 100 firefighters are battling the flames, as the building begins to collapse. pic.twitter.com/sLpk861BAF

— DW News (@dwnews) May 25, 2023

"All you could feel when standing here was heat on your face from the flames," one witness told public broadcaster ABC News.

"And when they started to move us back, a car just in front of the building caught fire."

Nearby train services continued to operate as usual, although light rail services were suspended.

"The public is urged to avoid the area as firefighting operations continue," NSW Premier Chris Minns said.