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Canada cites US treaty in pipeline dispute in Michigan


DETROIT, MI (AP)— Canada is getting deeply involved in a dispute over the Line 5 oil pipeline in Michigan.

Canada informed a judge that it is invoking a 1977 treaty with the United States. That step should suspend a lawsuit by Michigan to shut down the pipeline.

Line 5 is operated by Enbridge. It runs from Wisconsin to Michigan to Ontario. A section of the pipeline is in the Straits of Mackinac.

Governor Gretchen Whitmer and Attorney General Dana Nessel say Line 5 is risky and should be shut down. Enbridge plans to build an underwater tunnel to protect the pipeline under a deal made with Whitmer's predecessor, Governor Rick Snyder.