Police are responding to a serious crash on the State Highway 20 near Mt Roskill.
The incident occurred on northbound lanes past the Dominion Road onramp at around 1.46pm.
The crash involves a vehicle and a pedestrian, with the pesdestrian sustaining serious injuries.
The Serious Crash Unit has been advised and will examine the scene.
Accordingly, northbound traffic will be impacted. The Dominion Road onramp is currently closed.
Police advise motorists to avoid the area if possible, further updates will be provided when available.
Tony Wright/NZ Police
Source: NZ Police