Five employees from the Italian cruise firm that operated the stricken Costa Concordia have been convicted of manslaughter, the Associated Press has reported.
The cruise liner, run by Costa Crociere, rammed into rocks in January last year in a shipwreck that killed 32 people.
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Judges have had to weigh up complicated issues in reaching their decisions.
The prince laid a floral wreath at one of a group of metal crosses near Wellington Arch in central London.
The group, which also owns Premier Inn, said on Wednesday that it will pursue a ‘demerger of Costa’.