New South Wales has recorded 105 new locally acquired cases of COVID-19 in the 24 hours to 8pm on Saturday night (local time), the third highest number of new daily infections since the outbreak of the Delta variant began on June 16.
The latest figures bring the total number of cases in NSW to 6753, with 111 local cases reported in the state on Saturday.
NSW Premier Gladys Berejiklian said 27 of the new cases had been infectious while in the community.
Sixty-nine cases were in isolation throughout their infectious period and seven were in isolation for part of their infectious period, she continued.
Sixty-six of the new cases are linked to a known case or cluster, while the source of infection for 39 cases remains under investigation.
Officials also announced the death of a woman in her 90s from south-eastern Sydney, bringing the total number of COVID-related deaths in Australia to 60.
On Saturday, Berejiklian announced the state's lockdown would be extended, with all non-essential retail forced to close.
"Obviously things like supermarkets, pharmacists, they will retain face-to-face retail. But anything which is regarded as non-critical retail will not be able to have face-to-face [service]," Berejiklian said.
Seventy-six people with COVID-19 are currently in hospital in NSW, 18 of whom are in intensive care.