Nearly 1400 homes are without power in northwest Auckland where a car has taken out a power pole.

The accident happened on Anderson Rd, near Kaukapakapa just before 3pm.

The single car crash has left one person in a serious condition and three others in moderate conditions.

Fire and Emergency says one person who was trapped inside the vehicle has now been freed by fire crews.

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Vector says there is an emergency shutdown in the area so urgent repairs can be carried out.