At least 12 passengers from cruise ships that departed from South Florida died when a bus carrying them to Mayan ruins in eastern Mexico flipped over on a highway early Tuesday, officials said. Seven Americans and two citizens of Sweden are among the injured, according to Quintana Roo state Civil Defense spokesman Vicente Martin, who said authorities haven't yet established the nationalities of the dead. Miami-based Royal Caribbean Cruises said in a statement that passengers from two of its ships, the Celebrity Equinox and Serenade of the Seas, were involved in the crash. The company expressed its sympathies and said...