UPDATE 1.28pm:A Tauranga man has driven into a crash barrier near Clarke Rd.
A reporter at the scene said the man was on his was home in Whakamarama after donating blood when he became dizzy and had blurred vision at the wheel.
The man suffered minor injuries and is being treated by ambulance at the scene.
North bound traffic is backed up.
EARLIER: Emergency services are responding to an incident where a car collided with a road barrier near Te Puna about 1pm this afternoon.
Police shift commander Willie Taylor said police and ambulance are on their way to the scene along State Highway 2 near Clarke Rd.
Mr Taylor said the crash has stopped traffic on the road it is unknown if the driver was injured or trapped in the vehicle.
More to follow.