A person has died following a crash in Westland on Saturday night.
Emergency services were called to the two-vehicle crash on State Highway 6, between Ruatapu and Ross, about 8.35pm.
Police said the driver of one of the cars died at the scene, and the driver of the other vehicle was flown to hospital with serious injuries.
State Highway 6 reopened about 4am.
Police were investigating the cause of the crash.