A shark mauled a teenage boy in Sydney Harbor on Sunday, police said, leaving him in a critical condition with serious leg injuries.The predator bit the boy, believed to be about 13 years old, in the late afternoon off Shark Beach, New South Wales state police said.For all the latest headlines, follow our Google News channel online or via the app.“The injuries are consistent with what is believed to have been a large shark,” police said in a statement.Officers pulled the teen from the water, off the harbor beach in the eastern Sydney suburb of Vaucluse, within minutes of being alerted to the incident, police said.They gave the boy first aid for “serious” leg injuries while he was aboard a police boat, applying two medical tourniquets.Paramedics transported him to Sydney Children’s Hospital, where he was said to be in a critical condition.“Swimmers are advised to avoid entering nearby waters at this time,” police said.There have been more than 1,280 shark incidents around Australia