A vehicle has spun-out of control and is blocking the left-hand north-bound lane on the motorway near the Tawa off-ramp in Wellington - causing further delays to motorists heading north out of the capital for New Year's Eve destinations.
The vehicle lost control about 2.30pm on the Johnsonville-Porirua Motorway and two people suffered moderate injuries, a police media spokesperson said.
No other vehicles were involved, but motorists did pull over to help. The left-hand lane remains closed and police are working to clear the scene.
The latest accident adds to the traffic chaos in the capital which has forced traffic down to a crawl and, at times, a standstill as motorists head north for their holidays.
The New Zealand Transport Agency is warning motorists on State Highway 1 this afternoon to expect delays of up to two hours.
