All residents inside the Kings Park Apartment Complex at Dodds and Wells streets are in isolation. The two cases – both adult men with links to communal areas – will be included in tomorrow’s figures.

Mr Foley told reporters about 200 people from the complex have been tested thus far, and both new cases are linked to the two cases in the complex reported yesterday.

Victoria’s Covid-19 response commander Jeroen Weimar said the apartment complex is now the number one priority with infection control and testing teams now on the site. Wider areas of the complex will be locked down while the outbreak is addressed.

Mr Weimar said the first cases of Covid-19 at the complex were offered a room in hotel quarantine, and they took up that offer. Today’s cases will also be offered a spot in hotel quarantine.

Quizzed over whether people should be allowed to isolate at home if they live in the apartments – which one positive case, a baby, is doing with its mother – Mr Weimar said there was no reason to suggest they shouldn’t.

“We don’t have any evidence of apartment-to-apartment transition like in hotel quarantine,” he said.

“I don’t think we see the direct parallels.”

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Victorian Government nurses descended on the complex yesterday after concerns were raised over potential transmission between the buildings.

A case that tested positive on Saturday lived in the same complex as a aged care worker at Arcare Maidstone who also tested positive, Mr Foley told reporters yesterday.

“There was reason to believe, both from genomic sequencing and from the epidemiology of these cases, possible exposure sites around a smaller number of internal facilities,” he said.

“Health contacted residents of this complex to inform them of that potential transmission risk and have asked them to isolate.

“Department of Health specialist nurses were on site [on Monday] morning working with the residents and a pop-up testing facility was established near the facility to make sure that we could make it as easy as possible for people to get tested.

“Rather than wait for the community to come to the contact tracers and the testing facility, local public health took the view that they should go to them, and I think that is a good thing.”

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Mr Foley said most residents would only be required to isolate until they test negative as it was a tier 2 exposure site, but a smaller number would need to quarantine for the full 14 days.

He said there were just over 100 townhouses in the complex.

“An SMS went out too everyone on the list last night … and a door knocking and testing is well underway,” he said.

“It’s quite a large area with multiple entry points and car parks.

“But we took the view if we want to run down these last few chains of transmissions, and we’ve got the ability to take the services and the engagement to that community, we should, because that will get the job done quicker.”

Mr Foley could not say what the shared facilities with the transmission risk were yesterday morning, only that they were not laundries.

When asked if an apartment or townhouse complex should be listed as an exposure site every time there was a positive case, the Health Minister said it depended on the circumstances.

“We take the advice of the public health team who investigate each set of circumstances based on the merit of how things work out on the site,” he said.

The Southbank complex is now a Tier 1 exposure site - meaning anyone who has been to the complex between June 2 and June 14 must get tested immediately and quarantine for 14 days from the last time they were at the site.