Victoria has reported one new locally-acquired Covid-19 case out of the more than 17,000 tests done in the past 24 hours until midnight.
The state's health department said the new case was a primary close contact of an existing case and they had been in quarantine throughout their infectious period.
There are now 68 active cases of Covid-19 in Victoria.
On Saturday, 14,390 vaccine doses were administered and 17,102 test results were received.
Speaking at a press conference on Saturday, Victoria's Covid-19 Response Commander Jeroen Weimar expressed concern about low testing numbers.
"My personal view is that there is certainly more cases out there. I think we're talking very small numbers," he said.
"But we need to track them down because as we have seen, if we let them linger and build, and we have seen how infectious this Kappa variant can be in certain settings, we really want to get on [top of] the problem."
On Saturday, one case was announced with health authorities trying to determine the source.
But the man is likely to be linked to the Kappa cluster in Melbourne.
McDonald's, Woolworths added to list of exposure sites
On Saturday, health authorities added several new exposure sites, including a McDonald's and a Woolworths supermarket.
Victoria uses a tiering system to determine what people should do if they have been to an exposure site.
Anyone who visited a Tier One exposure site must immediately isolate, get a Covid-19 test and quarantine for 14 days from the date of exposure.
For people who visited a Tier Two exposure site, people must get a Covid-19 test and isolate until they receive a negative result.
People who have visited a Tier Three exposure site must monitor for symptoms and get tested immediately if any present.
New Tier One exposure sites in Victoria
Boyd Community Hub - Maternal Child & Family Health Services, 207 City Rd, Southbank VIC 3006 on June 8 between 2:45pm - 3:45pm
The new Tier Two exposure sites in Victoria are:
Medibank - Docklands, Level 7, 720 Bourke St, Docklands VIC 3008 on May 18 between 7:45am - 4:15pm
Boyd Community Hub, 207 City Rd, Southbank VIC 3006 on June 8 between 2:45pm - 3:45pm
Boyd Community Hub - Park play area, 207 City Rd, Southbank VIC 3006 on June 8 between 3:30pm - 4:30pm
Woolworths Melbourne Square, Shop 1/10 Hoff Boulevard, Southbank VIC 3006 on June 8 between 4:00pm - 5:30pm
McDonald's Freshwater Place, Freshwater Pl, Southbank VIC 3006 on June 11 between 5:00pm - 5:30pm
A full list of exposure sites can be found on the Victorian Government website.
Do you have a story tip? Email: email@example.com