ESTONIA sank during a storm in the Baltic Sea. The sinking claimed 852 lives and the exact cause remains controversial. The ferry was engaged in an overnight crossing from Tallinn to Stockholm, carrying 989 passengers and crew. The official report states that the bow visor broke under the strain of the heavy weather, allowing large quantities of water to enter the car deck. The free-surface effect of the water on the open deck caused the ferry to list and rapidly sink. A variety of safety improvements were adopted subsequent to this incident.Labels: accidents, around the world