Meanwhile, a crash on State Highway 1 at Karāpiro in the Waikato is causing delays.
Emergency services are responding to the collision near the intersection with Karāpiro Rd.
Waka Kotahi NZ Transport Agency said the incident is blocking lanes.
"Please be patient while emergency services assist with this crash," an alert issued on Twitter said.
NZTA reported the crash just after 11.30am and said delays of up to 15 minutes could be expected.
Police are pushing a message to motorists to "drive safely and arrive alive" over the holiday period.
It comes as the official holiday road toll climbed to 11 deaths, after a person was killed in a crash between a car and a truck in the Lower Kaimai Ranges early this morning.
Assistant Commissioner Scott Fraser said: "We know people will be keen to get home and the weather conditions will make driving challenging in many parts of New Zealand.
"But we don't want to see any more families impacted by tragedy this holiday period and we need all road users to play their part in getting everyone home safely.
"It's very simple - keep your speed down and appropriate to the conditions, watch your following distances, put the phones away and take a break if you feel fatigued."
