______ people were rescued after the ship sank.

Divers have been hammering on the hulls of the front and rear sections of a sunken South Korean navy ship, but no signs of life have been detected, military officials said Monday. The 1,200-ton patrol ship was carrying 104 sailors when an apparent explosion caused it to capsize Friday night in the Yellow Sea near a disputed maritime border between the Koreas. (25) Fifty-eight sailors have been rescued, but hopes were fading for finding the remaining 46. (27) No cause has been determined for the ship’s sinking. (26) South Korea’s defense minister said it is possible an old mine could be behind the explosion. He said North Korea brought in about 4,000 sea mines from the Soviet Union during the war and placed about 3,000 of them in the Yellow and East seas. "Though many sea mines were removed, it must have been impossible to retrieve them 100 percent," he said.