Source: New Zealand Police
Police have been called to a two-vehicle crash on Transmission Gully near Whitby about 3.25pm.
All northbound lanes from Waitangirua Link Road are closed, and motorists are advised to avoid Transmission Gully and take the old State Highway route.
Southbound traffic on the highway is down to one lane, and motorists should expect delays.
One motorist is reported to have critical injuries and will be airlifted to hospital.
The Serious Crash Unit has been notified.
ENDS
