A European holiday cruise has turned sickly for hundreds of passengers as a vomiting virus swept through a massive ocean liner, reports British media.
Crew members of P&O's Oriana taped off areas of the ship "like a crime scene" while passengers said the liner smelt of sick, British tabloid The Sun reported on Wednesday.
While P&O management said nine cases of norovirus had been confirmed, reports of up to 300 ill passengers have come from on board the vessel.
"There might be a riot because the captain and crew refuse to listen. We'll refuse to disembark unless we get some answers. It's been a cruise to hell," British passenger Dave Stringer, 57, told The Sun.
A statement from the cruise company said: "enhanced sanitation protocols have already been implemented".
The liner, carrying more than 1800 people, sailed on December 4 for a tour of Christmas markets at Amsterdam, Copenhagen, Oslo and Hamburg, and is due to dock at Southampton on Thursday.