MS Herald of Free Enterprise was a roll-on roll-off (RORO) ferry which capsized moments after leaving the Belgian port of Zeebrugge on the night of 6 March 1987, killing 193 passengers and crew. The modern 8-deck car and passenger ferry, owned by Townsend Thoresen, had been designed for rapid loading and unloading on the competitive cross-channel route, and there were no watertight compartments. When the ship left harbour with her bow-door open, the sea immediately flooded the decks, and within minutes she was lying on her side in shallow water.