A teenage man died and two others were seriously injured after a car believed to be carrying seven people rolled south of Dargaville, throwing six occupants from the wreckage.
Emergency services rushed to the scene of the crash on Pouto Rd, just south of Mount Wesley Coast Rd about 1.35am yesterday.
Police believe alcohol and excessive speed may have contributed to the crash.
Initial reports suggested two people may have been travelling in the car's boot or hatch and all bar one person in the vehicle were understood to have been thrown from it.
Anthony Charles Matich, 19, of Dargaville, died at the scene.