Emergency crews are rushing to Porirua Harbour north of Wellington, where a car has gone into the water.
It happened on Paremata Road, about a kilometre from the Paremata-Mana roundabout.
Inspector Marty Parker says the car ended up in Pauatahanui Inlet.
"We know that one of the occupants of the vehicle, or an occupant of the vehicle, is out of it. And were sending all emergency services to the scene now."