Costa Concordia: How could this happen to a modern ship?
14 January 2012 Last updated at 10:54 GMT
Shipping experts say it is unclear why such a modern luxury liner should have hit rocks in well-charted, calm waters.
Investigators will be looking into how the Costa Concordia came to be off course, and why it overturned so quickly.
The Independent's travel editor Simon Calder: "It is unbelievable... that this should happen to a 21st Century ship."