A serious crash on a main road into Pukekohe has left a person fighting for their life.
Three cars collided on Mill Rd just before 7pm, a police spokeswoman said. A person who had been in one of the cars was in a critical condition.
The road, which is off State Highway 1, is blocked between the Bombay motorway off-ramp and Harrisville Rd, a police spokeswoman said.
Both the north and south bound off-ramps are closed.
NZTA said motorists heading to Pukekohe from the motorway should use the Drury or Pokeno exits and follow directions from emergency services.
The crash is likely to cause delays.
The police Serious Crash Unit is investigating.
More to come.