SYDNEY Fishermen have discovered a human head inside a four-meter (12-foot) tiger shark caught off Australia's east coast, AFP quoted police as saying Sunday. The shark, caught near the tourist destination of Lord Howe Island, about 700 kilometers (434 miles) southeast of Brisbane, also appeared to have swallowed an arm or a leg, police said in a statement. A postmortem examination of the remains will be conducted next week as part of a police investigation. Relatives of a man who went missing off the Queensland coast on April 25 said they feared the remains belonged to Ross Symons, whose empty four-meter (12 foot) boat was found abandoned at sea the next day.