Boy, 12, dies from injuries after Sydney shark attack

A 12-year-old boy, Nico Antic, has died from injuries sustained in a shark attack in Sydney Harbour. The incident occurred while Nico was swimming with friends on January 18. Authorities suspect a bull shark was responsible for the attack. Nico's family has expressed their heartbreak and described him as a happy and friendly young boy. His friends were praised for their bravery in trying to help him after the attack.