SAN FRANCISCO (AP) -- Authorities say they have not found any evidence of criminal negligence in the fatal grounding of a yacht on the Farallon Islands off San Francisco.

The 38-foot sailboat was hit by waves while rounding the island during a race on April 14. Seven of the Low Speed Chase's eight crew members fell into the chilly Pacific Ocean. One was found dead later that day and four remain missing at sea.

San Francisco police had been tasked with investigating the crash. They said Tuesday that they have concluded the crash was a terrible tragedy.

The District Attorney's Office reviewed the police department's findings and agreed with that conclusion.

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