Police have named the two people who died in a crash on State Highway 1 near Paraparaumu on Friday.
They were Stephanie Anne Fox, 18, and Lance Kevin Reilly, 39, of Titahi Bay.
Police would not release details of the other persons involved in this crash.
The investigation into the cause of the crash is ongoing.
Police described a chaotic scene after a car smashed head-on into vehicle carrying a family that was coming the other way.
The deaths take the holiday road toll to 15.