Victoria has recorded 11 new cases of coronavirus, further raising expectations the state's lockdown will be extended.
The whole state was plunged into its sixth lockdown on Thursday night that was due to last only a week, but is already believed to have failed.
All 11 cases were believed to have been infectious while in the community, likely infecting dozens more people.
On Saturday, before the numbers were announced on Sunday morning, there were 17,360 vaccine doses were administered and 38,179 Covid tests.
A new list of 28 new exposure sites, including six high-risk locations, released late on Saturday night increased pressure to extend the lockdown beyond a week.
Victoria have added 28 new exposure sites including six high-risk with the state's lockdown set to be extended after confirming 29 new cases on Saturday
Premier Dan Andrews said 'sly gatherings' in Victoria are behind 29 new locally acquired Covid-19 infections with the government now under severe pressure to stem the numbers or extend the state's week-long lockdown.
The cases were the state's worst single day figure in almost a year, with the Herald Sun reporting senior officials were in discussions to extend the stay-at-home-order beyond Thursday's cut-off.
There isn't confidence in the state's contact tracing system to get on top of the latest Delta outbreak - Victoria's third this year - in time for the lockdown to end as planned.
The news comes as a Woolworths, two BWS stores and a McDonalds were added as Tier 1 exposure sites.
The BWS and Woolworths in Caroline Springs have both had an infectious case in attendance, as did McDonalds in Yallambie.
A Woolworths, two BWS stores and a McDonalds were added as Tier 1 exposure sites on Saturday night with officials scrambling to contact trace people in contact with cases
Victoria has recorded 29 new locally acquired Covid-19 infections in the 24 hours to Friday eve
There is a growing fear within residents of Victoria and state leaders that they could be in for another long lockdown with an influx of new cases and exposure sites.
Premier Andrews fears there will be another large increase in cases tomorrow as the state comes to terms with a sixth lockdown and third Delta outbreak.
'This is a very concerning day,' he said.
'This is very, very significant to see this many cases. Our system will be overrun if we don't bring this under control.'
Health authorities say all of the new cases are linked to current outbreaks but worryingly none were in quarantine during their infectious periods.
There are over now 100 active Covid exposure sites in Victoria - and traces in sewerage across the state - as the situation begins to resemble the early stages of Sydney's still uncontrolled outbreak of the Indian Delta variant.
Saturday's new exposure sites include fast food restaurants, supermarkets, bottle shops, an outlet factory and office building.
Anyone who was at Woolworths Caroline Springs on August 5th at the times listed must immediately get tested and isolate for 14 days regardless of the result.
A worker at BWS in Caroling Springs has also tested positive, with four days now a Tier 1 site.
Health authorities said the positive cases were not in quarantine during their infectious period as Victorians brace for more exposure sites to be announced
More than 100 exposure sites are not active in Victoria as officials fear the Delta strain could be taking hold in the state
'We're seeing a very significant number of cases coming through and it's a number of significant transmission sites that are now active,' Victoria's Covid commander Jeroen Weimar said at a press conference on Saturday.
Eight of the cases are all linked to a single family in a public housing tower in Flemington, which was also subject to lockdown during the deadly outbreak of the Alpha variant last year which killed over 800 people in the state.
Mr Andrews said those cases had all been relocated and 'are in alternative, safe accommodation'.
Mr Andrews cautioned against residents getting together for 'sly' gatherings as they could easily become exposure sites and lead to the virus spreading, just as it has done in NSW and Queensland.
'Other people across Melbourne and Victoria were doing some visiting on the sly thinking it's all innocent and fine. They've [been] lucky... Others have not been so fortunate,' he said.
'We're all human, We're all part of families, we'd all dearly love to see the people that we love the most... Concern needs to be turned to doing the right thing.'
