Until the cluster was discovered Tuesday, New Zealand had gone 102 days without community-spread infections, with the only known cases all travelers quarantined after arriving from overseas.
Prior to this, the country had a 102-day streak without a single coronavirus cases being recorded.
Health Minister Chris Hipkins said it was "good news" that so far all the cases Dr Bloomfield mentioned were all connected and were all part of one cluster.
"What has happened in New Zealand is a real demonstration of why we have to remain cautious", he said.
"But it's not a sign that it's escalating beyond our capacity, it's just the behaviour of clusters".
The Prime Minister is due to update the country on the lockdown on Friday.
Everyone who was at the Congregational Christian Church of Samoa Māngere East Puaseisei on Sunday and anyone who has been in contact with those who were there are being told to get a test as a precaution. The most positive outcome is if contact tracing identifies a clear line of transmission from an imported case or someone working at managed quarantine, ' Prof Baker told the NZ Herald.
There was also growing anger at revelations that members of the infected family had visited several tourist sites in the town of Rotorua and an aged care home in the Waikato district, both south of Auckland.
The student attended class on Monday, and local health authorities said they were contacting and isolating around 100 close contacts they had while at school.
"You can see the seriousness of the situation", she said.
"The advantage we have here is the fact that we're already in level three (lockdown) restrictions". We are dealing with one (cluster) rather than multiples. "But we are expecting growth so I do think it's important we prepare people for that".
Peters said he had been informed of the details by a New Zealand journalist.
A six-year-old boy at Southern Cross Campus in Auckland has also tested positive to coronavirus. "We need to maintain our hygiene and physical distancing practices, this is critical to keeping our people safe", Puna said.
The outbreak has grown to 30 people and extended beyond Auckland, the country's largest city, for the first time.
Police set up checkpoints at the city's borders as scores of people attempted to leave to avoid a sustained lockdown, as Ardern warned they would be turned back.
The government will decide at a crunch Cabinet meeting on Friday whether to extend or deepen the lockdown, a decision largely based on case numbers. This possibility has allowed the major opposition National Party to seize on potential flaws in Ardern's approach ahead of the September 19 election, which she described as a "Covid election" when launching her campaign.