Women hold signs outside housing commission apartments under lockdown in Melbourne, Australia, on Monday, July 6, 2020.
The border between the states of New South Wales home to Sydney and Victoria home to Melbourne is due to be shut late Tuesday.
The infections announced Monday surpassed the first surge of infections in Melbourne that peaked on March 28 at 111 cases recorded in a day.
The federal government had previously opposed any internal border closures aimed mostly at stopping spread from Victoria and New South Wales.
Of those, 10 had been in hotel quarantine in New South Wales and three in Western AustraliaNew South Wales police will enforce the Victorian border closure.