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The driver of the car is now in a serious condition after being tasered by police and has been taken to hospital.
Three other occupants of the car have been arrested.
Video posted on Facebook showed a white vehicle on the station platform.
The incident began when police spotted a vehicle that had been stolen in Panmure shortly before 10.45am
Police units and the Eagle helicopter followed the vehicle, which was seen driving dangerously across East Auckland.
The vehicle was seen being driven into oncoming traffic before travelling through Mt Wellington and Otahuhu, where it collided with another vehicle at the intersection of Atkinson Ave and Princes St.
Nobody was injured in the collision, but the driver continued to flee and drove the vehicle on to the platform at Middlemore train station.
A police officer deployed a taser while trying to apprehend the driver.
Police said the man suffered a "medical event" and has been taken to hospital in a serious condition.
Three other occupants in the car were arrested.
Train services were affected on the Eastern and Southern lines, but Auckland Transport said normal service has now resumed.