A man was apparently bitten on the ankle by a shark while swimming at Ballston Beach in Truro on Monday afternoon, police said. The injury is not believed to be life-threatening. The man swam to shore and was taken from the beach to Cape Cod Hospital after a 911 call came in about 3:30 p.m., said dispatcher Martha Wheeler of Truro police. Wheeler said witnesses reported seeing a shark fin, but police could not confirm its presence.
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