Emergency services are responding to a serious crash on State Highway 14 in Kaipara.
The single-vehicle accident happened on the stretch between Maungatapere and Dargaville.
A St John spokesperson said they received a call at 6.21pm and sent one ambulance and one rapid response vehicle.
“We are still on scene and don’t have any more information at this stage.”
Police said the highway will be closed for several hours while they investigate.