Teen in critical condition following suspected train surfing incident on Sydney bridge

A 17-year-old boy suffered multiple injuries including to his head, chest, and pelvis after falling from the outside of a northbound train on the Sydney Harbour Bridge. Emergency services responded to the railway corridor between Wynyard and Milsons Point stations following reports of the fall, and the teenager was subsequently transported to Royal North Shore hospital in a critical condition. Authorities indicated the incident is believed to be related to 'train surfing' or 'buffer riding,' an illegal activity that has been increasingly promoted on social media. Police and transport officials warned against participating in such high-risk stunts following the incident.