State Highway 2 has reopened after a fatal crash in Upper Hutt this morning.
One person died after the two-car crash on State Highway 2, River Rd, in the suburb of Elderslea.
The Serious Crash Unit was on site investigating, causing the road to be closed for several hours, but has finished its examination.
The road has now been fully reopened.
Other people had been treated for a "range of injuries", police said.