San Francisco Fire Department spokeswoman Mindy Talmadge confirmed to Press Association Sport that Andrew 'Bart' Simpson was taken to St Francis Yacht Club on the shore where paramedics performed emergency resuscitation, but he was pronounced dead.
She said another sailor suffered minor injuries.
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A wintry start to the weekend
A teacher has died after being hit by a dislodged manhole cover which smashed through her windscreen.
A dog has been found with its paws frozen to the ground in a New York park after being chained to a tree.