A truck has taken out powerlines in Whangarei and closed a busy road in Whangarei.

Police are asking motorists to avoid Kiripaka Rd, in Tikipunga, after a truck took out lines just before 3.30pm today.

The lines affected are between Spedding Rd and Otuhiwai Cr.

Whangarei police Senior Sergeant Darren Sullivan said officers had put in cordons and traffic would be diverted around the lines.

Firefighters were at the scene and Northpower had also been notified.