A rolled logging truck is blocking the road near Waimate North - the fourth truck rollover in Northland this month.

The half-laden truck and trailer unit rolled just before 4pm near the intersection of Waimate North and Okokako roads, about 20km south-west of Kerikeri, blocking both lanes.

Diversions were in place at either end of Waimate North Rd and police were unable to advise when the road would reopen.

Police said no-one was injured in the crash and no other vehicles were involved.

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Three other trucks rolled on Northland roads between April 11 and 18. All of the accidents involved no other cars.