Jeremy Fewtrell, NSW Deputy Fire and Rescue Commissioner, said the fire was largely contained but emergency services would be on duty throughout the night.
“Right now the state of affairs is that the fire is effectively contained to the buildings that it was involved in,” he said.
“Firefighters from Fire and Rescue, along with New South Wales Police, made a significant effort in the early stages to evacuate surrounding buildings and get people to safety.
“I am pleased to report that there was no evidence of injury to anyone in public.”
The fire has been classified as a 10th alert status by NSW Fire and Rescue – the most serious type.
Residents have not yet been told when they will be admitted.
One woman said her dog stayed in the apartment and that emergency services did not let her in for safety reasons.
She said she was worried about her French bulldog given the smoke and heat from the fire.