Prime Minister Jacinda Ardern and Dr Ashley Bloomfield are addressing media with latest updates on the new community transmission led four cases. 

Dr Bloomfield added that the four detected last night had travelled to Rotorua last weekend while being symptomatic. 

A pop-up testing centre has been set up in Rotorua (on Vaughn Road) and Taupo for people in the area. 

Another press conference scheduled today will potentially announce masks mandatory for Aucklanders given the city is going to Alert Level 3 at noon today.

A child who attends Mount Albert Primary School is believed to be involved with the community cases.

Dr Ashley Bloomfield says a woman in her 20s in the family travelled to Rotorua on Saturday while she was symptomatic, and the ministry is working to find out where the family went in Rotorua.

People in Rotorua and around the country should seek advice if they have symptoms, Dr Bloomfield says.

The family are still in isolation at home and the ministry is working with them about possibly going into quarantine, he says.

There are currently testing sites available in Rotorua (on Vaughn Rd) and Taupo for people in the area, he says.

No members of the family require hospital care at this stage.

The ministry is testing all close and casual contacts of the family that have come into contact with them recently, which the ministry estimates to be 130 people including workplace colleagues.

Three colleagues of the male and his partner are symptomatic and are isolating, Dr Bloomfield says.

The ministry is using genome sequencing on all those who have tested positive to try and track the source of the virus.

More to come.