A South Korean state-run company may have carried out a survey last week in waters off disputed islets within Japan's exclusive economic zone in the Sea of Japan, the top government spokesman said Tuesday.Tokyo sought an explanation via diplomatic channels for an apparent marine survey off the contested islets by a ship entrusted by the South Korean government firm and told Seoul it does not accept any probe within Japan's EEZ, Chief Cabinet Secretary Hirokazu Matsuno said at a press conference."We could not confirm whether a survey was conducted and only issued a warning in waters where th…READ FULL ARTICLE