Today police said four people including two teenagers and a man had been arrested and charged with aggravated robbery, kidnapping, theft and unlawfully taking a motor vehicle.
A 28-year-old man and two women aged 22 and 19 years were due to appear in the Whangarei District Court. A 15-year-old girl was due to appear in the Youth Court.
Police are now appealing for sightings of a black 2001 BMW sedan between 2pm and 4.30pm south of Whangarei on State Highway 1 and including Loop and Otaika Valley Rds.
Anyone who has information is asked to contact Detective Aaron Crawford on 09 430 4570 or call Crimestoppers on 0800 555 111.