One man has been taken to Waikato Hospital in a critical condition after his car crashed into a power pole in Huntly this afternoon.
Emergency services were called to Te Ohaki Rd around 2pm.
The Waikato Serious Crash Unit has been called to investigate the crash and traffic management staff is assisting with diversions.
"While unable to comment further on what has occurred, we are asking road users to drive with care and keep their speed down to ensure they get to their destinations safely," says Senior Sergeant Juliet Burgess.
The road is likely to be closed for at least two hours.