GATINEAU, QC - The Transportation Safety Board of Canada (TSB) is deploying a team of investigators to the St. Lawrence River near Cornwall, Ontario, to assess two occurrences involving the tugboats Lac Manitoba and LCM 131 which have capsized.  It is not known if the occurrences are related.  The TSB will gather information and assess the occurrences.  The TSB also has stated that the tug Dyna-Mo was NOT involved in the occurrence near Cornwall. The second capsized tug is the LCM 131.