The Ministry of Health is not recommending any changes to the trans-Tasman travel bubble after a community COVID-19 case in Melbourne.
Earlier on Tuesday, a man in Victoria tested positive after returning to his home from hotel quarantine.
He recently returned to Australia and undertook hotel quarantine in South Australia. On May 4, he went home to Wollert on the outskirts of Melbourne and developed symptoms on May 8. He was tested on Monday and it came back positive on Tuesday morning.
The Ministry of Health believes the current public health risk to New Zealand is low and at this stage doesn't recommend any change in quarantine-free travel.
Victorian Health authorities believe there is a likely link to the border through the man's recent time spent in managed isolation.
But there is a warning for New Zealanders who have recently visited any locations of interest.
"Individuals in Australia who were at a location of interest at the specified times are required to follow Victoria's health advice regarding isolation and testing. Anyone who has been at a location of interest cannot travel to New Zealand from Australia within 14 days of exposure," the Ministry of Health says in a statement.
"Anyone in New Zealand who has been at any of the locations of interest at the specified times should contact Healthline on 0800 358 5453, self-isolate and be tested as soon as possible."
Information about locations of interest visited by the case is available on Victoria's Department of Health website.
The Ministry of Health says it will be contacting recent arrivals from Melbourne and Victoria and giving them health advice.
"Anyone planning to travel to Melbourne and Victoria should take into account that advice from health authorities could change at any time and be prepared for their travel plans to be disrupted."
Under New Zealand's traffic light system, a case with a clear link to the border shouldn't impact flights between Aotearoa and Australia. If the case has an unknown source, travel may be suspended.
It's the latest case of COVID-19 to be found in the Australian community after two cases were detected last week in Sydney. They prompted the New Zealand-New South Wales travel bubble to be put on pause for three days.
