
On 8 June 2016, the roll on, roll off (ro-ro) vessel Eddystone experienced an unintentional release of carbon dioxide (CO2) from its fixed fire-extinguishing system while in the Red Sea. A similar incident took place on 17 July 2017 on board the ro-ro passenger ferry Red Eagle while on passage from the Isle of Wight to Southampton. In both the Eddystone and Red Eagle, gas leaked into the CO2 cylinder compartment, but was prevented from entering the engine room by the main distribution valve which remained closed. Fortunately, no one was harmed in either of these incidents. However, the unintended release of CO2 from fire-extinguishing systems has caused 72 deaths and 145 injuries, mainly in the marine industry, between 1975 and 2000.