Two children were bitten in the leg in the waters off New York's Fire Island in possible shark attacks, prompting beach closings, authorities said.
Suffolk County police said they were investigating the separate incidents, which occurred less than 8km apart at Sailors Haven and Atlantique beaches. Both beaches were temporarily closed.
A 13-year-old boy was bitten while on a boogie board at Atlantique Beach and was treated at a hospital, according to Town of Islip spokeswoman Caroline Smith. EMTs at the scene removed a tooth from the boy's leg.
At Sailors Haven beach, a 12-year-old girl suffered bite marks "consistent with a large fish" while wading, said Elizabeth Rogers, a spokeswoman for Fire Island National Seashore, which runs the beach.
Rogers said authorities had not confirmed the wounds to be shark bites, but said the Suffolk police marine bureau was waiting for the state Department of Environmental Conservation to identify the tooth.