A two car pile-up is slowing traffic on Auckland's Southern Motorway.
The crash is blocking the right northbound lane near the Mt Wellington on-ramp.
NZTA has advised motorists to pass the scene "with care and expect delays" as police work to clear the incident.
Police were advised about 4.45pm.
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Traffic is able to move around the crash but one of the cars is not driveable so it will take some time to clear, a police spokeswoman said.
Ambulances were at the scene as a precaution.