A five-year-old boy has died after a quad bike crashed into a creek north of Auckland.
An ambulance and a rescue helicopter were called to lifestyle block on Foster Road in the town of Kumeu this afternoon.
A St John spokesperson said the child was critical when crews arrived, and he died at the scene.
Police said the cause of the crash was being investigated by the Serious Crash Unit and a post-mortem would determine the cause of the boy's death.