Six students who survived a ferry disaster in South Korea have given evidence in the trial of crew members implicated in the deaths of more than 300 people.<br /><br />They described how the crew told them to stay in their cabins, even as the ferry sank and water came in, but that their classmates helped them float free.<br /><br />The 15 crew members face charges ranging from homicide to negligence for abandoning the sinking ship in April.
