A three-vehicle crash has partially closed a Northland highway this morning after a truck and trailer rolled south of Kawakawa.

Emergency services were called to State Highway 1, about 8km south of the town, about 7.20am today.

A police northern communications spokesman said two vehicles and a truck and trailer had collided.

No one was injured but the truck and trailer rolled, blocking one and a half lanes of the road.

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One lane remains open while police wait for contractors to clear the road.