UPDATE
Four people are now dead following a head-on collision on State Highway 1 north of Wellington this afternoon.
All four were travelling in a southbound car between Pukerua Bay and Paekakariki, a notorious accident blackspot.
Police said it appeared a southbound car had crossed the centre line and collided with a northbound car at about 4.30pm.
The driver of the northbound car is in Wellington Hospital with serious injuries.
The names of the dead are being withheld until next-of-kin have been informed.
Police are still trying to understand why the cars collided, as driving conditions at the time were said to be good.
The crash caused a major traffic jam backing up to Paraparaumu in the north and Porirua in the south. The road is now clear.
- NZPA
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