Rescuers describe finding 48 girls in one room meant for 30 people . The rescue operation began after a fire broke out at the home of an elderly couple who were sleeping when it started around midnight on Saturday. `` I 'm very mindful that my visit comes at a time of mourning for the people of this nation , '' he told the U.S. and the South Korean delegations . Search effort now expected to slow , says commander of the rescue operation . Prosecutors investigate Sewol 's sister ship , find numerous safety problems .
Rescuers describe finding 48 girls in one room meant for 30 people . The rescue operation began after a fire broke out at the home of an elderly couple who were sleeping when it started around midnight on Saturday. Search effort now expected to slow , says commander of the rescue operation . Prosecutors investigate Sewol 's sister ship , find numerous safety problems .