Western Australia has recorded no new community cases of Covid-19 amid a growing outbreak of the virus in Perth.
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In total, two cases of community transmission have been recorded, in addition to the original case which sent Perth and the Peel region into lockdown on Friday.
Western Australia (WA) Premier Mark McGowan said the latest community case had visited the same restaurant as the original case. They are now in hotel quarantine.
One new overseas case has been recorded in hotel quarantine, a resident returning from India.
Western Australia (WA) Premier Mark McGowan said he wanted to see more testing completed, and that it was "too early to predict what will happen on Tuesday", when the lockdown is due to end.
He said it was "absolutely essential" people got tested if they had visited any of the exposure sites.
"If you've been to an exposure location that the WA Health Department deems higher risk, you must get tested and complete 14 days of self-quarantine - regardless of your result," McGowan said.
"If you have attended any of the listed potential exposure locations, get tested immediately.
"Even if you have not visited one of the locations, if you have symptoms - get tested and self quarantine until you get your result."
Two casual contacts in NZ
Two people who recently arrived in New Zealand are being considered casual contacts of the recent community covid-19 cases in Perth.
They were in the Perth domestic airport terminal at a possible exposure time, and have been tested today.
The Health Ministry said the risk to the New Zealand public was believed to be very low, and the pair remain in isolation until their test results come back.
'Too early to predict' what will happen on Tuesday
McGowan said it was not yet clear what would happen come Tuesday, when the lockdown is set to lift.
But he did say it was likely there would be "an extension in some form, of controls".
"Right now, it's too early to predict what will happen come Tuesday," he said.
"I'm sure there'll be some further measures that continue. What they are, we won't know until tomorrow morning.
"We'll get health advice tomorrow morning, but I think people should get used to the prospect that there'll be some further measures that are continued beyond Monday.
"We need to see more testing completed, and most importantly we need close contacts and casual contacts … to be tested.
"So please keep doing the right thing."
McGowan said more exposure sites would be added to the list as contact tracers continued to do their work.
"New potential exposure sites have been added overnight, including new locations in Joondalup, Alexander Heights, Wangara, Canning Vale, Kardinya, Bentley and Morley," he said.
"Today WA Health authorities will also add a Landsale childcare centre to the list."
There are now 359 close and casual contacts of the confirmed cases.
Hundreds of contact tracers work through weekend
WA Health Minister Roger Cook said there were now about 165 million scans on the Safe WA register app.
Cook said there were more than 100 contact tracers currently working to find close and casual contacts of the confirmed cases.
"The contact tracing teams will contact that [Covid-positive person] with that result, then work hard from there," Cook said.
"They will talk to the person by phone to build up a picture of their life from the time they potentially became infected, where they have been, when they were there, who they had been with.
"They will use the Safe WA data to build this crucial picture."
WA Premier rejects Commonwealth decision on quarantine facilities
The premier again reiterated his call for the Commonwealth to step in and support states with quarantine requirements.
"Currently we have 2166 returned overseas travellers in hotel quarantine, this large number of travellers in our hotel quarantine system is not sustainable," he said.
"And today we're expecting another four international flights into Perth.
"I asked the Commonwealth to halve our international arrivals for at least a month, this request has been accepted, however the reduction in our weekly cap will only begin from Thursday morning.
"The reduced cap of 512 per week will stay in place until 30th of May.
"However if the Commonwealth is unable to assist with proper quarantine facilities, I am reluctant to return to the full 1025 per week cap.
"That weekly number of returning residents is not something that can continue long term, without proper Commonwealth quarantine facilities being used."
- ABC/ RNZ