Victoria’s Acting Premier James Merlino has said “further action” cannot be ruled out if the Whittlesea COVID-19 outbreak continues to grow.
Six new COVID-19 cases have been found and brings the cluster total to 15.
New restrictions came into force across Greater Melbourne on Tuesday night, including making mask-wearing essential and putting visitor limits on private and public gatherings.
Mr Merlino said the next 24 hours would be “critical”.
“I cannot rule out taking some further action, but we’ll update people as soon as we know,” he said.
“These cases so far are all linked, and that’s a good thing, but we are concerned about the number (of cases) and the kind of exposure sites.”
However, Mr Merlino said he would not “foreshadow” what those future changes might be.
The MCG has been identified as one of the exposure sites, with thousands of people potentially affected.
Melbourne has so far endured three lockdowns since the outbreak of the pandemic, including their most major one that went for 17 weeks last year.
It exited its most recent lockdown, which was a five-day snap decision by the government, in February.
Victorian Health Minister Martin Foley said Melbourne’s immediate future was in the hands of residents.
Victorians are facing travel restrictions around Australia.
New Zealand has temporarily paused its travel bubble with the state.
