A Canadian news service is reporting that a federal agency north of the border is investigating the grounding of a ship in the St. Lawrence Seaway last month.
The Chem Norma went aground on May 29 near Morrisburg, Ontario, across the St Lawrence River from Waddington.
A Canadian Press report in the Ottawa Citizen says the Transportation Safety Board of Canada is looking into the incident.
The Chem Norma was carrying refined petroleum products. No pollution was detected where it went aground.
The tanker was pulled free on June 3, six days after it became stuck.
Two tugs were unable to free it, so a third was called in.
All three struggled to loosen the vessel from the mud-and-clay river bottom.
The Canadian agency will determine if the Chem Norma is still seaworthy.
(The photo is by Cathy Henry and is from when the Chem Norma was freed.)