Northgate in New Plymouth is closed following a serious crash overnight.
The single-vehicle crash is reported to have occurred around 1:35am on Thursday.
One person was taken to hospital with serious injuries.
Northgate is currently closed while staff examine the scene and traffic management is being put in place.
Motorists coming into New Plymouth from Bell Block on Northgate will be diverted onto Watson Street, after the Te Henui Bridge then onto Lemon Street, onto Hobson and back onto Leach Street.
Motorists heading out of New Plymouth on Courtney Street will be diverted over the Hobson Street/Courtney Street intersection, continuing on Courtney Street, right on Watson Street and back out onto Northgate.
Motorists are advised to expect delays.
Updates will be provided when available.
Issued by Police Media Centre