A 72-foot catamaran being sailed by America's Cup champion Oracle Racing has capsized on San Francisco Bay.
While some of the crew members were thrown into the water, all are accounted for and there are no serious injuries, according to a statement released by the syndicate.
The boat was being skippered Tuesday by Jimmy Spithill, who led Oracle to a two-race sweep of Alinghi of Switzerland in 2010 to bring the America's Cup to San Francisco.
A syndicate spokeswoman says the boat was carrying 11 crewmen and possibly some extra sailors and designers.
Tactician Tom Slingsby says the wing sail was badly damaged.
The boat pitch-poled, or tumbled end-over-end.
Oracle is testing its 72-footer for the 34th America's Cup next year. The America's Cup World Series is being contested in 45-foot cats, and there have been a number of capsizes.