On 27 May 2021, the premier of Victoria state imposed a statewide lockdown until 2359 local time (1359 UTC) on 3 June in response to local spread of the B1.617.1 coronavirus variant. Under the measure, residents may only leave their homes for food and other essential supplies, for work, caring for individuals, outdoor exercise or traveling to vaccination appointments. Face masks are also mandatory in all public areas. More information regarding the lockdown is available here.

In related developments, authorities in Western Australia and New South Wales states imposed restrictions on travelers from Victoria. On 26 May the premier of Western Australia closed the borders to travelers from Victoria state until further notice. Anyone attempting to enter Western Australia who has been in Victoria after 16 May is banned from entry. Residents who return to Western Australia must undergo a 14-day self-quarantine at their residences. Exemptions to the border closure restrictions include cargo transportation providers, individuals involved in emergency situations and anyone approved by government officers to engage in travel. In New South Wales, any traveler arriving from Victoria state must self-isolate at their home for seven days. Travelers under the self-isolation order can only leave their homes for essential items, medical care, essential work or outdoor exercise.