China promises 'no cover-up' in ship sinking probe as death toll rises to 65

China has pledged that there would be "no cover-up" of an investigation into the sinking of a cruise ship on the Yangtze River, which has left 65 people dead and over 370 missing, as angry families gathered near the rescue site to demand answers.

Authorities are investigating the crew members who were rescued from the Eastern Star, which capsized in a freak tornado on Monday night, and were "gathering evidence", Xu Chengguang, the spokesman for the Ministry of Transport, said.