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Police are advising motorists to drive carefully after an oil spill on State Highway 1 north of Auckland this morning.
Inspector Gavin MacDonald said the oil spill occurred along a 10km stretch between Wellsford and north of Warkworth.
Police and the local council were on the scene and a clean up was under way, he said.
Police said later the highway was cleared and the truck driver responsible for the spill had been dealt with by the highway patrol.
- NZPA