A stop-go system is in place on State Highway One, between Waipu and Brynderwyn, after a trailer has come off the back of a vehicle.
There are no injuries but a crane is required to remove the trailer, which has overturned.
The southbound lane is blocked and a stop-go system will remain in place until approximately 10am.
Police thank motorists for their patience in the meantime.
ENDS
Police Media Centre