Product tanker KEY FIGHTER requested medical assistance at 0430 LT Sep 1 in position north of Maloy, Norway, while en route from Averoy to Maloy, with cargo of rapeseed oil. Two crew were badly injured by exposing to hydrogen sulfide while working in tank – understood cargo tank. Both lost conscience and were recovered from tank by other crew, both airlifted by helicopter to be transferred to Alesund. One of them died, another is in critical condition. Tanker docked at Maloy at around 0500 UTC.