A person has been hurt after the car they were in went off the Coastal Highway and into a swamp at Mapua, west of Nelson.
Emergency services were called to the scene, near Mapua Dr, at 6.28pm.
Southern fire service communications shift manager Andrew Norris said no one was trapped in the car, but one person had been hurt in the crash. It was unclear how serious the person's injuries were.
Fire crews were helping St John ambulance staff assess the injured patient, Norris said.
