More than 90 passengers and crew members on a Royal Caribbean International cruise ship which set sail from Tampa, Florida, on Feb. 1 for a weeklong cruise came down with a gastrointestinal illness, causing vomiting and diarrhea.

The Centers for Disease Control and Prevention did not specify what type of gastrointestinal illness caused the outbreak, but the victims reported having diarrhea and vomiting.

A gastrointestinal illness has broken out this week on the Radiance of the Seas cruise ship, according to the US Centers for Disease Control and Prevention.