A 10-storey building in Sydney's CBD has caught alight with fire crews racing to the scene to battle the blaze.
A sheet of scaffolding in the building caught alight and collapsed onto Pitt Street and Alfred Street near Circular Quay about 8.40am on Tuesday, a Fire and Rescue NSW spokeswoman told AAP.
Everyone in the building has been evacuated and seven crews are on scene fighting the fire.
Building behind circular quay on fire .. this is how it started ! Could have contained it if the firies were here early ! #circularquay pic.twitter.com/zVAU91S2Du — MeeraS (@Kuruvee) February 12, 2018
Sydney Trains alerted passengers that trains will soon resume operating around the City Circle, following the fire, but will not stop at Circular Quay.
The thick plume of smoke that engulfed Circular Quay was visible from across Sydney Harbour on Tuesday morning as firefighters evacuated the area to control the blaze.