Two other sailors on the submarine had been reported missing . 18 sailors who were missing are found dead , authorities say . Seven other sailors are hospitalized after toxic smoke on a submarine . The chief of the the INS Sindhurakshak has stepped down following a series of problems on vessels . In a day , an explosion on another Russian submarine killed all Seven sailors on board .
18 sailors who were missing are found dead , authorities say . Seven other sailors are hospitalized after toxic smoke on a submarine . The chief of the the INS Sindhurakshak has stepped down following a series of problems on vessels . In a day , an explosion on another Russian submarine killed all Seven sailors on board .