The oil tanker which caught fire off Germany’s Baltic Sea coast on Friday did not suffer any visible damage to its hull as a result of the fire, the water police has confirmed. Divers inspected the exterior of the 73-metre-long tanker Annika on Saturday. The dive, which was documented with a helmet camera, was intended to determine whether there were any deformations in the hull or changes to the paintwork caused by the build-up of heat. The tanker, which was carrying 640 tonnes of heavy fuel oil when a fire broke out in its rear early on Friday, was towed overnight to the north-eastern German…