USCG & Canadian safety agency begins investigation of tug fire. Chief engineer has now died in hospital. The U.S. Coast Guard and marine safety agencies from Canada have begun their investigations into the fire aboard the towing vessel Patrice McAllister near Prince Edward Point, Ontario. The most severely injured crewmember, the boat’s chief engineer, died in a Toronto hospital. The 105-foot U.S.-flagged vessel was transiting on Lake Ontario from Toledo, Ohio, to a port in New York when the fire broke out in the engine room. Another commercial towboat towed the Patrice McAllister to Clayton, N.Y. As the federal agency responsible for marine safety aboard commercial vessels…