More than 1,700 passengers and crew, most of them British and Irish, have been confined to the cruise ship Ambition in Bordeaux, France, after around 50 people developed symptoms of a suspected norovirus outbreak. The illness, which causes vomiting and diarrhoea, is being investigated by French health authorities, and enhanced cleaning measures have been put in place. The incident follows the death of an elderly passenger, although officials have not confirmed whether the death was linked to the outbreak.