By 3 News online staff
A motorcyclist is in a critical condition after colliding with a car on State Highway 1 between Cambridge and Hamilton.
Police say emergency services were notified of the serious crash in Tamahere at about 1:20pm.
"The Waikato Serious Crash Unit is in attendance at the scene and initial indications are a car and a motorcycle have been involved in a head-on collision," says Senior Sergeant Andrew O'Reilly.
He says motorists should expect delays.
"There are significant areas of road construction in the area around the crash, which is having an impact on the establishment of diversions, and motorists are asked to avoid using this route where possible."
Police did not have details of any other injuries, and the Waikato DHB was unavailable for comment.