One person suffered moderate injuries after a car which had earlier been chased by police crashed just south of Whangarei on State Highway 1.
Emergency services were called to the scene on SH1 near Brynderwyn Road.
A police spokesperson said a unit signalled for a vehicle to stop due to its "manner of driving" around 7.45pm.
"When the vehicle failed to stop, police pursued the vehicle for a short time," the spokesperson said.
"The pursuit was quickly abandoned due to the manner of driving. Shortly after Police saw that the vehicle had crashed on the southern side of the Brynderwyn Hill.