Northland police are investigating how a pedestrian was struck by a vehicle and then by a following police patrol car.
The 43-year-old man, believed to be from Auckland, suffered serious but non-life threatening injuries predominantly to his lower body and legs and remained in a stable condition in Whangarei Hospital.
Officers were trying to contact the man's family.
Road policing manager Inspector Murray Hodson said emergency services were called to State Highway 1, about 1km from Kaikohe, about midnight yesterday but said it appeared neither driver was at fault.
"The crash is currently under investigation by the serious crash unit, however, initial indications are that the incident happened in an area controlled by a 100km/h speed limit," Mr Hodson said.