Premier Gladys Berejiklian appealed to Victorians living in the six infection hotspots that have now been identified in around greater Melbourne, to refrain from interstate travel unless absolutely necessary.
The Australian state of Victoria has taken a step back from easing COVID-19 restrictions scheduled for Monday, after recording a spike in new infections.
The NSW premier and deputy premier have both voiced concerns about the possible "second wave" outbreak now unfolding in Victoria, where more than 70 new cases have been detected in the past week.
77 new cases of coronavirus recorded across four days in Victoria has seen the state's government return to stricter COVID-19 lockdown measures, in an attempt to combat a second wave.
It said Victoria had accounted for 83 per cent of new coronavirus cases recorded in Australia in the past week.
Of the new cases two have been linked to the Stamford Plaza Hotel in Melbourne, taking that outbreak total to 14.
He said it was particularly concerning Victoria, unlike other states, had patients back in intensive care.
First golfer on PGA Tour tests positive
The guide also said at-home tests before traveling to a tournament are "strongly encouraged" but not required. The RBC Heritage presented by Boeing continues Saturday at Harbour Town Golf Links in Hilton Head.
The DHHS says the closures offer the chance to carry out a deep clean, as well as follow up on close contacts. The other new case is a third staff member who did not work at the store while infectious.
"We have had cases of people gathering in large numbers, everybody at their home or another family member's home or a close friend's home, even though they had been told to isolate in their own home", he said on Saturday.
Cafes, restaurants and pubs were set to expand their number of patrons from 20 to 50 on Monday, but that is now on hold.
"I appreciate what Victoria is going through but don't assume that it won't happen in NSW or anywhere else.it can happen very quickly, just with a couple of cases, a couple of instances of people spreading the virus unintentionally". Gyms, cinemas, indoor sports centres and concert venues will still open for the first time on Monday, but also with a limit of 20 people.
"Whether it's restriction fatigue, whether it's something else, but clearly people have started to disregard those messages and we're seeing the results in the number of case reports".
"We all want to see friends, we all want to see family, we all want the kind of psychological break of doing things that are normal", he said.