CCTV ... Police say the man followed the 27-year-old victim after shouting obscenities at her.
Police today released CCTV footage in an appeal for anyone with information about the sexual assault of a woman in St Kilda last month to come forward.
The 27-year-old woman was walking along the Esplanade at around 4.40am on Sunday 29 April when a man with an Irish accent began yelling obscenities at her, investigators have been told.
The man followed the woman along Robe Street where he is reported to have sexually assaulted her and punched her several times to the face.
Residents in the area began yelling at the man and he then left the scene. He was later seen in Fitzroy Street in St Kilda about 4.30am.
The man was described as fair-skinned and aged in his late teens or early 20s and of medium build with a round face, small mouth and short brown hair. He was seen wearing a blue-and-white or green-and-white checked hooded shirt and light-blue jeans.
Detectives have released an image of a man they believe can assist with their investigation from CCTV footage in the area.
Do you know this man? ... Police believe he can help with their investigation.
Anyone who recognises the man or who has any information about the incident is asked to contact Crime Stoppers on 1800 333 000.