ST. IGNACE (AP) — An anchor will be recovered from the bottom of the Straits of Mackinac after it became detached from a cable during maintenance of an oil pipeline, Enbridge Energy said Friday.

“There was no risk to the pipelines,” the company said in a written statement. “The anchor was placed in between the dual pipelines in an area more than 500 feet from either pipeline per a pre-approved anchoring plan.”

The incident involved a contractor. Enbridge’s Line 5 crosses the bottom of the straits, a roughly 4-mile-long (6.4-kilometers) waterway connecting Lake Huron and Lake Michigan.

The state said it was told about the 15,000-pound anchor Wednesday.

Enbridge wants to build a tunnel in the water to house the pipeline.

Gov. Gretchen Whitmer, a Democrat, ordered the Line 5 pipes closed by mid-May, a deadline the company ignored. A lawsuit is pending in federal court.