On December 17, the 97 meter long self-propelled tanker barge Frisius broke-in-two while off La Coruna, Spain.   The Frisius and another barge was under tow by the 32 meter long tug Sun Essex when the vessels encountered bad weather.   The vessels diverted for La Coruna, but the Frisius broke-in-two before reaching shelter.   The remaining half of the Frisius and the other barge were towed back to La Coruna.  No reports of injuries.   The vessels had departed from Rotterdam bound for Lagos.