Emergency services are responding to a serious crash on state highway 23, between Hamilton and Raglan.
Photo: ST JOHN NZ
Fire and Emergency shift manager Kaisey Cook said a truck had rolled and a person was trapped inside.
She said four appliances attended the crash.
Police said one person has been transported to hospital in a serious condition.
The crash was reported to emergency services at about 8.30am and the serious crash unit has been advised.
The road is expected to be closed for several hours and diversions are in place at Te Pahu Road and Waitetuna Valley Road.