Teen stabbed in back during night out in Carlton, in Melbourne's inner north A TEENAGER celebrating his 18th birthday suffered life-threatening injuries when he was stabbed in the back during a gang bash in Melbourne's inner north. The birthday boy - who was out on the town with two friends who were also assaulted in the attack - was near the intersection of Leicester and Queensbury St, in Carlton, in the early hours of Saturday morning when a larger group of men approached them. The trio had been celebrating at a nearby venue and left about 4.30am, when the group of males confronted them and started pushing them. The men left the scene, however they returned a short time later and stabbed the victim who was celebrating his birthday. He suffered stab wounds to his back and was later taken to the Royal Melbourne Hospital in a serious condition. Detectives arrested six males a short time later but they were all released pending further investigation. Police hope to speak to anyone who may have witnessed the assault and are particularly keen to speak to the driver of a green-coloured sedan seen in the area at the time. Anyone with any information about the incident is urged to contact Crime Stoppers on 1800 333 000 or www.crimestoppers.com.au