A high-rise apartment block in the Sydney suburb of Mascot has been evacuated after residents reported the building started to move.

Up to 100 apartments were evacuated by NSW Fire and Rescue who attended the Bourke Street building just after 6pm this evening.

“We evacuated as a precaution, after movement was detected over a couple of days,” a NSW Fire and Rescue spokesperson said.

Emergency services were called to an apartment building in Mascot tonight after reports the walls were moving. (9News) Up to 100 untis were evacuated amid fears the high-rise on Bourke Street, mascot could collapse (9News)

Engineers are currently at the location assessing the risk and police have cordoned the area off from residents and members of the public to prevent injury, should any debris star falling from the building.

There was also a road exclusion zone in place at Bourke Street and nearby Coward Street and Church Avenue.

Some residents reported seeing the cracks in the walls get bigger over the past two days and all are required to find alternative accommodation for the time being.

Strata and building management issued a notice to residents saying 94 units were evacuated and further monitoring of the situation would be required over the next week.

By 9News Staff – 9news