MISSISSIPPI - Serious Maritime Casualty

On 9 September 2025, the Portuguese flagged container vessel MISSISSIPPI was made fast portside alongside, in unloading operations, at the Port of Long Beach, California, United States of America. During the cargo operation, a progressive starboard heel developed while containers were being discharged from the vessel. Subsequently, a collapse of container stacks occurred on board, resulting in multiple containers falling overboard At the time of the occurrence, the vessel was operating its anti-heeling system, designed to transfer ballast water between port and starboard ballast tanks during cargo operations.