Motorists are advised to expect delays on State Highway 16 following a crash this afternoon.
Police were notified at 12.35pm, after an eastbound vehicle hit the median barrier near the St Lukes off-ramp.
There were no reports of injury.
An eastbound lane and a westbound lane are currently blocked and traffic is building.
Heavy delays are expected, with Police advising motorists to avoid the area or seek an alternative route.
ENDS.
Frankie Le Roy/NZ Police.