Detectives are appealing to the public to assist with their investigation into a stabbing in Williamstown earlier this year.
Police have been told a man was walking along Aitken Street when he was approached by an unknown male on a bicycle just after 7pm on June 18.
The offender struck the victim to the back of the head before producing a knife and stabbing him twice.
The victim, a 23-year-old Williamstown man, was transported to hospital with serious but non-life-threatening injuries which later required surgery.
The offender fled east through a residential car park on a light-coloured bicycle.
He was last seen wearing a black hooded jumper, black pants and runners.
Investigators released images and CCTV on September 30 of a man they believe can assist with their inquiries.
Anyone with information can contact Crime Stoppers on 1800 333 000 or www.crimestoppersvic.com.au
