Two people have been flown to Middlemore Hospital by helicopter following a crash in Onewhero, in the Waikato District.
St John Ambulance crews and police officers rushed to the crash on Tuakau Bridge-Port Waikato Rd around 7am today.
A police spokeswoman said the caller was one of the people involved in the crash.
One patient had serious injuries in the collision while another was in a moderate condition.
Both were treated by St John Ambulance staff at the scene and then flown to Middlemore Hospital by helicopter.