Russian officials say seven sailors rescued after three days on a sunken submarine appear to be in satisfactory condition. The Russian sailors were pulled to the surface Sunday, just hours before the last of their precious oxygen was expected to run out. A British undersea robot cut the mini-sub loose from a maze of cables and fishing nets off Russia's far-eastern Kamchatka Peninsula. British Commander Ian Riches, who led the rescue team, called it a difficult but "extremely rewarding" operation. Russian Defense Minister Sergei Ivanov thanked the British rescuers and the American and Japanese naval personnel who assisted. Russian President Vladimir Putin has ordered an investigation. Mr. Putin was widely criticized following the loss of the submarine Kursk five years ago for remaining on vacation and failing to ask for international help.