Torrential downpours have caused widespread flooding and power cuts in the upper North Island.
Flooding in Coromandel after a night of torrential rain is the worst in more than a decade, the head of civil defence says.
Coromandel civil defence said there is widespread flooding in Whangamata, Hikuai, Tairua and Pauanui.
Emergency evacuation centres have been set up in the Coromandel after heavy rain caused flooding in the area.
Multiple parts of roads on the Coromandel Peninsula are closed due to flooding including from Kopu to Thames, and north of Whangamata to Opoutere.
Thames Coromandel District Council is advising people to stay off the roads if possible.
Water supplies in the Coromandel have also been affected. Power outages and heavy rain have put the pump stations at some wastewater treatment plants under pressure.
People have been asked not to flush toilets if they can help it in Tairua, Pauanui, Onemana and Whangamata.
Near Auckland a police car has been hit by a flash flood and washed off the road into a swollen creek, stranding an officer on top of the vehicle.
Nearly 200 children and adults from two schools have been evacuated from waist-deep floodwaters at camps overnight in Auckland’s Hunua Ranges.