Mildura enters a seven-day lockout from midnight on Friday after COVID cases “increased in recent days”.
The Ministry of Health said that in recent days, nine cases had been reported in the border community.
A further three cases were discovered on Friday and will be formally reported on Saturday.
“The public health teams are concerned about the transfer in Mildura and have determined that a seven-day lockdown is needed to curb the growth of cases,” the health ministry said.
During lockdown, residents can only leave the home for limited reasons.
They must act on necessary goods and services, care or compassionate causes, authorized work or allowed education, exercise and outdoor social interaction in restricted groups, and receive a COVID-19 vaccine locally.
No visitors are allowed in the home, except for intimate partners or the singles bubble event.
Shopping, exercise and outdoor social interaction will be limited to 15 km from the residents’ homes.
Masks will be mandatory indoors and outdoors.
“Locals are being asked to be on alert for symptoms and be tested if anyone develops.
“A rapid response test team has been deployed to provide support to the region.”
Two other regions will meanwhile end the lockdown as planned.
Shepparton and Moorabool will both end their heavy constraints and bring them in line with the rest of regional Victoria.
It follows Victoria, which reports its highest daily increase in case load since the start of the pandemic on Friday.