The captain of the grounded Italian cruise ship, Francesco Schettino, is blaming the navigation system.
The ship's captain told Italian television that he did not expect the rocks to be in the area where the ship ran aground.
He said: “I don’t know if it was detected or not, but on the nautical chart it was marked just as water and some 100-150 metres (328ft-492ft) from the rocks, and we were about 300 metres (984ft) from the shore, more or less.
“We shouldn’t have had this contact.”
Francesco Schettino was detained on suspicion of multiple manslaughter.
The number of people missing is now down to 11 passengers and six crew, Tuscany’s regional president Enrico Rossi said.