New South Wales has recorded 233 new local cases of COVID-19, with at least 47 having been infectious while in the community.
It comes after more than 105,000 tests were undertaken across the state on Tuesday.
Two people in the state who had COVID-19 have died overnight. One was a man in his 20s from Sydney who had been isolating at home. The other was a woman in her 80s, who died at Royal Prince Alfred Hospital.
"Obviously our deepest condolences to his family and loved ones," NSW Premier Gladys Berejiklian says. "But it demonstrates again how this disease is lethal, how it affects people of all ages."
"Unfortunately the gentleman wasn't vaccinated, hadn't had any dose of the vaccine. As we understand the death happened quite suddenly."
Chief Health Officer Kerry Chant says the man had recently complained of "feeling a little fatigued" but deteriorated quickly.
"I think it is important that we understand, we are aware that with COVID you can get sudden deaths and I think that is important to understand that your health status can deteriorate and you can have sudden death with COVID infection"
Of NSW's new local cases, 103 are linked to a known case or cluster, the state's health department says.
"Seventy-nine are household contacts and 24 are close contacts and the source of infection for 130 cases is under investigation.
"Ninety-two cases were in isolation throughout their infectious period and 21 were in isolation for part of their infectious period. Forty-seven cases were infectious in the community, and the isolation status of 73 cases remains under investigation."
The state has recorded 4063 local cases since the outbreak began on June 16.
"There are currently 286 COVID-19 cases admitted to hospital, with 53 people in intensive care, 23 of whom require ventilation."
Meanwhile, Queensland on Wednesday reported 17 new locally acquired cases, up from 16 on Tuesday. Sixteen of these are linked to the Indooroopilly Delta cluster, taking that outbreak to 63 genomically-linked cases, while one new case from Cairns is under investigation.
The Australian state's deputy Premier Steven Miles says the Indooroopilly outbreak is now the state's biggest since the first wave of COVID-19 early last year.
Brisbane's Ekka public holiday, set down for next Wednesday, has now been postponed due to the likelihood of some restrictions still being in effect.
Miles said, on the most part, residents were following the lockdown rules.
"We are still seeing some people going out to shop or to browse for non-essential reasons and while there is an exemption to allow people to leave their homes to get essential — groceries and medicines — that does not extend to other discretionary items.
"I has to be essential and the onus is on the individual to have a reason to leave their home, not on retailers or businesses.
Queensland police have issued 48 infringement notices for people not complying with the rules.
