An MST Mineralien Schiffahrt Spedition-controlled open hatch carrier has sailed from Duluth after a lengthy detention by the US Coast Guard as the agency investigated environmental allegations.

The 24,500-dwt Cornelia (built 2015) is heading eastbound in Lake Superior Saturday headed to Montreal, according to satellite tracking data from VesselsValue.com.

The departure comes after the Coast Guard announced that it struck a deal with the ship’s owner and operator to “protect the government’s interests” in investigating allegations of environmental crimes.

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