A fire broke out on board Oasis of the Seas, the first in a series of two 225,000 gross ton cruise liners Royal Caribbean International (RCI) has on order at Aker Yards Finland. <br /><br />Some 1,500 workers that were on board the ship at the time the fire started at about midday on Thursday were evacuated. Insulation material on deck 9 caught fire in connection wityh welding work and the yard's own fire fighters were able to put it out before it could cause extensive damage, the Kauppalehti business daily reports on its website.<br /><br />Although the were no casualties, the fire caused a lot of smoke, which spread from deck 9 to various decks higher up on the ship, the report said.