Rapid contact tracing is underway to get the south Auckland cluster under control and authorities are urging people to answer the phone if the Ministry of Health calls.
New Zealand recorded 13 new cases of COVID-19 on Friday - bringing the number from community transmission to 30.
Border patrols now cut Auckland off from the rest of the country but on Friday it was confirmed two new cases of community transmission have emerged in a small Waikato town.
Director-General of Health Dr Ashley Bloomfield confirmed "two of the 13 new cases are in Tokoroa" during the 1pm COVID-19 update press conference.
"These two people tested positive after being followed up as a contact of a family member, who is one of the Auckland cases, so part of that Auckland cluster."
The Auckland pair didn't know they were infected at the time, and it's that fear of the unknown that's driving Kiwis straight to testing stations.
Close to 16,000 tests were processed on Thursday - the most in a single day.
Auckland's 16 testing centres are working overtime to manage the queue of hundreds.
Minister of Health Chris Hipkins is calling for New Zealanders to only get tested if they have symptoms.
"If you are well and you're seeking a test you are preventing someone who needs a test from getting a test," he said.
On Thursday two schools and a preschool had to temporarily close after being linked to the outbreak - making rapid contact tracing and testing even more pressing.
Currently, 12 of New Zealand's 13 new cases have already been traced back to the existing Auckland cluster.
"For the 13th case, that person is currently in hospital, the link is still under investigation," Dr Bloomfield said.
It's believed that the case is linked, but the confirmation is critical.
Dr Bloomfield is urging Kiwis who are called by contact tracers to pick up or return the call.
