NSW government and 'homeless' residents await answers after Sydney high-rise 'crack'

The NSW premier says the government is "getting to the bottom of what happened" at a Sydney apartment complex that has been evacuated due to cracking.

Residents of an apartment building in Sydney have been forced to leave their homes. Source: AAP

The NSW government "will hold everybody to account" once the root cause of ongoing and persistent cracking in a Sydney apartment complex is identified, Premier Gladys Berejiklian says.

Mascot Towers was evacuated on Friday night after engineers became increasingly concerned about cracks in the primary support structure and facade masonry of the decade-old building in the inner-south suburb Mascot.