The black Toyota Corolla appeared to have sideswiped the first oncoming vehicle before rebounded and colliding head-on with the second oncoming vehicle.
Mr Campion said two occupants from the second vehicle were taken to hospital.
"Irrelevant of what the distraction might be in the vehicle, it's important to concentrate on driving because unfortunately incidents like this can cause injury or worse," Mr Campion said.
"It's very important to focus."
The crash occurred just metres from the Turret Rd bridge, which runs over the Waimapu Estuary.
Mr Campion said police would be considering whether to lay charges or what the outcome of the crash might be.
The crash comes after two other collisions on Turret Rd and 15th Ave on Tuesday.
The nose-to-tail crashes were considered minor but held up peak hour traffic for nearly and hour.