The Outer Banks Voice reports the 47-year-old man was bitten repeatedly on the back around 11:40 a.m.
He was flown to a hospital in Norfolk for treatment.
Red flags were raised at Avon alerting beachgoers of a shark attack.
Several children have been the victims of shark attacks along North Carolina's coast this month including a 13-year old girl and 16-year old boy who both lost limbs about 90 minutes apart at Oak Island.
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