Oil leak affects fishing and tourism industries , says Thai Deputy Minister . Company responsible says does not know how leak occurred . ( CNN ) -- Greenpeace fears dispersed oil sunk beneath water surface could have ongoing impact . One academic believes leak could be twice size admitted to by company .
Oil leak affects fishing and tourism industries , says Thai Deputy Minister . Company responsible says does not know how leak occurred . Greenpeace fears dispersed oil sunk beneath water surface could have ongoing impact . One academic believes leak could be twice size admitted to by company .