St John said they were "called to the scene at 3.19 pm" and spent an hour treating the driver before they "took them to hospital at 4.13 pm".
Police said it "looks like a car had hit a power pole and several other vehicles" and that "one person sustained serious injuries during this incident".
The power pole was snapped off a metre above the ground, the top half of the pole left lying on the footpath.
Emergency services treat the driver behind a white tarpaulin. Photo / Supplied
It appeared that the black vehicle had hit two cars, one on Farrington Ave, swiping down the driver's side of the vehicle, and another vehicle 20m further down the road at the corner of Kelburn St before turning left and colliding with a power pole.
Fire and ambulance staff managed to get the driver out of the vehicle and treated the person for an hour behind a white tarpaulin and on the grass verge on the opposite side of the road, away from the downed power lines.