Police are hunting a man who allegedly stabbed a teenager in a brawl near Sydney's CBD overnight.
The fight broke out around midnight as police say a large group of people left a party boat that docked opposite the Star Casino on Pirrama Road, Pyrmont.
The 18-year-old victim was treated for three stab wounds to his buttocks before being taken to St Vincent's Hospital for surgery.
A crime scene was set up and police have appealed for the public to help identify a man who may be able to help with their investigations.
He is described as being of Mediterranean/Middle Eastern appearance and aged in his mid-20s.