Excavator driver unhurt as crews work urgently to stabilise collapsed Sydney building

The operation to stabilise a building that partially collapsed on an excavator at a demolition site in Burwood, Sydney, continues this morning.

The 10-storey building fell onto the excavator just after 3pm yesterday at the site on Railway Parade in Burwood.

The man is safe and able to get out of the excavator, however, was told to stay put overnight for the structural integrity of the building, Fire Rescue NSW (FRNSW) said.

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"Areas started to collapse which has caused issues with the scaffolding as well, the risk is collapsing onto public roads or people being hurt, or it actually falling into harm's way," FRNSW Superintendent Josh Turner said.

"The excavator was put into position to actually support the building and the scaffolding... It's there as a precaution if it starts to move it can actually take a bit of the load from that."

The man is in an enclosed cabin and isn't at risk of injury, Turner also said.

"It's an enclosed cabin... ideally it's not there to have buildings collapse upon them, but he has a level of protection around him."

It was confirmed this morning that the man remained unhurt overnight.

Work to stabilise the building hit an obstacle this morning also, after a hydraulics issue with one of the machines forced a halt to proceedings before 7am.

However, workers said they would resume shortly after.

Some residents were evacuated from their homes over fears the rest of the building could collapse.

Railway Parade, currently closed, is expected to re-open today to allow them to return home.

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