Victorian Premier Daniel Andrews says there are promising signs the proposed five-day coronavirus lockdown could end on Wednesday night.
Speaking on Monday morning, Mr Andrews was unwilling to declare when the harsh lockdown would end, but said there were promising signs early on.
"It's a promising start and I thank all Victorians for the hard work they have put in," he said on Monday morning.
"We're well placed but right now is too early to be definitive.
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"I'm not in a position to be able to confirm that but I can say that thanks to the hard work of those Victorians who are coming forward and getting tested.
He said there were 21 active COVID-19 cases in Victoria and one new locally acquired case which was under investigation on Sunday.
That case has been confirmed to be the mother of a three-year-old child, which was announced on Sunday.
There were 25,144 test results received overnight.
"I'm very, very grateful to everyone who has come forward and gotten tested," Mr Andrews said.
He said he was not considering lifting the lockdown for people in regional Victoria earlier than for people in metropolitan Melbourne.
"I know people in regional Victoria, people everywhere... no one is enjoying this," he said.
Mr Andrews said a ring of steel could not be quickly set up around Melbourne because of the time and logistics involved.
The Tasmanian government has shut its borders to Victoria.