A child at a West Auckland primary school has tested positive for Covid-19.
The youngster attends Fruitvale School in New Lynn - a suburb where locals have been encouraged to get tested for the virus due to a high positivity rate in recent weeks.
In an email to parents on Sunday, principal Donal McLean, told parents: "On Saturday evening, I was informed that one of the children in the Fruitvale bubble school tested positive for Covid-19."
The families of all children who attended school last week had since been contacted by the Auckland District Health Board by email and would be contacted by phone as soon as possible, the email says.
All children who were affected - and their families - are now isolating for two weeks and will be tested for Covid.
"We felt it only right that everyone is made aware of this event. We didn't find out about the outbreak until several hours later," McLean wrote.
The classroom where the affected youngster attended classes would be deep cleaned as a result.
However, the school would be taking a further precaution in light of the situation.
"All future bubble classes will be held in different teaching spaces completely, so there should be no increased danger that this happen again."
McLean also called on the school's community to "send your best" to those caught up in the situation and to take care.
Also in West Auckland, Oratia District School has had a child test positive for the virus - but principal Linda Allen said the school had had only had to close one bubble rather than shutting down completely.
One child who was attending bubble school had contracted Covid from a family member, and after public health advice the school had closed their bubble for 14 days.
Members of the bubble had isolated and been through the day 5 and 12 testing procedure.
"We are very thankful that there was no further spread of the infection with all bubble members, including teachers, free from any symptoms and having consecutive clear tests."
Those children would be back at school again this week, Allen said.
Other bubbles had been able to keep functioning safely as there was no crossover.
"The clear health and safety guidelines expected of us by the ministries of education and health have been followed closely at school, and we are thankful that in doing so we have been able to continue receiving students to school each day in Level 3."
The news of more positive cases in schools comes after two large Auckland colleges were closed off to students and staff on Monday due to positive cases.
Mt Albert Grammar School was closed for deep cleaning after a student tested positive for the virus.
In East Auckland, Macleans College was shut for the same reason after a support staff member returned a positive Covid test result.