Emergency services respond to a serious accident on State Highway 2, Horokiwi, between Wellington and Petone.
At around 4:15 a.m., a single vehicle hit a utility pole and caught fire.
One person was seriously injured, another was seriously injured and a third was slightly injured, a police spokesman said.
The utility pole and lines are down and the northbound lane of SH2 is closed.
Diversions are in place and the southbound lane remains open.
Motorists are urged to avoid the area or delay their travel, if possible.
The Serious Accident Unit will examine the scene and closures may be in place for a few hours.
SH2 HOROKIWI – NORTH DIRECTION – ACCIDENT – 05:55
Due to an accident at 4:30 a.m., the road is CLOSED for northbound traffic between Petone and the Ngauranga Interchange. SCU is on scene investigating this incident. Please use an alternate route and allow extra time. ^FP pic.twitter.com/O7Ke0MXSIX
— Waka Kotahi NZTA Wellington (@WakaKotahiWgtn) June 23, 2022
Meanwhile, two people have died after two crashes on SH1 at Northland last night.
The first was a two-vehicle accident south of Kaitaia, near the intersection with Clough Road, just after 5 p.m.
Four people were airlifted to hospital in serious condition.
Another person died after a head-on crash between two cars pulling trailers north of Okaihau in Northland shortly after 7 p.m.
Two occupants of the other vehicle were slightly injured.