NSW has reported 466 new locally acquired cases of COVID-19 and four more deaths in the state's worst day during the pandemic so far.
After recording more than 2000 fresh cases in the past week, Saturday's number has set a new record for case numbers in NSW.
The four deaths were a woman in her 40s, a man in his 70s, a woman in her 70s, and a man in his 80s.
Of the new local cases, 121 are linked to known outbreaks and 345 are under investigation, while 87 people were in the community for all or part of the time they were infectious.
The isolation status of 303 people is also under investigation.
Premier Gladys Berejiklian told reporters on Saturday travel restrictions would be tightened in greater Sydney.
"You can do activity within your local government area but instead of 10km from your home, it will be 5km from your home and that's for all of greater Sydney," she said.
The police presence will also ramp up in affected LGAs, with random road checks and officers able to impose larger fines of $5000 for breaching public health orders.
Officers have checked on more than 2700 people and have issued 407 infringement notices to people breaking the rules.
"We are still seeing people who are willingly or recklessly not abiding by the current health orders." Police Deputy Commissioner Michael Willing said on Saturday.
Two businesses in the Mullumbimby area were slapped with infringement notices on Friday.
An additional 500 ADF personnel will be deployed on top of 300 already in NSW.
The Premier said the Cumberland shire is the new front of the virus spread, with Marylands, Auburn and Granville of particular concern.
Bayside, Strathfield and Burwood will be added to the list of LGAs subject to extra restrictions from Saturday.
Additional cases have also been identified overnight in Bexley Banksia and Rockdale.
The premier told reporters on Saturday that areas of regional NSW currently subject to lockdowns, including the Hunter and Upper Hunter, would see restrictions extended for another week.
"Given what the area is experiencing the community would understand why that's the case," she said.
She said from next week people in Greater Sydney will need a permit to travel to regional NSW.
On Friday 106,000 vaccinations were administered in NSW, a record number for the state.
The toll for the current outbreak in NSW is now at least 40.
© AAP 2021