The 127 meter long, 10891 dwt tanker Weserstern suffered an engine room fire while in the locks at Brunsbüttel, Germany.   The tanker was waiting to enter the North Sea from the Kiel Canal when the fire broke out.   The crew was able to contain and extinguish the blaze.   No reports of injuries.   The Weserstern remains moored at Brunsbüttel.  No details to the extent of damage caused by the fire.   The tanker was en route to Rotterdam from Porvoo.