Police are attending a crash on State Highway One near Puhipuhi Road, north of Whangarei.
The crash involving three cars occurred about 3.45pm. One person is believed to have died in the crash and two others are seriously injured.
Ambulance and Fire Service are also at the scene.
The road near the crash scene is closed and traffic diversions are in place.
Motorists heading north are being diverted through Jordan Valley Road and those heading south are being diverted through Hukerenui Road.
For media inquiries contact Northland Police Communications Manager Sarah Kennett on 09 945 4650 or 021 192 1099.