It has been a disastrous week on the roads, with 15 deaths in seven days, police say.
Photo: RNZ / Alexander Robertson
All the crashes will be the subject of coronial inquiries.
Assistant police commissioner Dave Cliff said every death on the roads was a tragedy for the affected families.
He called on drivers to be more mindful of others, watch their speed, and make sure everyone in a car wore a seatbelt or other restraint.