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BOYNTON BEACH, Fla. (AP) - The Coast Guard is searching for a 16-year-old boy who went missing while swimming in the waters off South Florida.

The Coast Guard says Boynton Beach Police reported the teen missing Sunday evening. Authorities say he was last seen swimming shirtless near the Boynton Beach Inlet. The teen went underwater but failed to resurface while swimming with a cousin.

Palm Beach County authorities have joined the Coast Guard's search for the boy.