Sexual Crime Squad detectives are appealing for information following three separate sexual assaults which are believed to have been carried out by the same man.
In the first incident a woman was attempting to open a front door when she was grabbed from behind and placed in a hug outside a home in Howard Street, Richmond on Sunday 14 April about 3.20am.
She was grabbed on the buttocks and breast and screamed before the offender ran off.
On the same day a second woman was walking along Church Street in Richmond when it's believed the same man also placed her in a bear hug before sexually assaulting her about 5am.
A short time later another woman, who was walking in Grosvenor Street, Abbortsford, was approached by the same man and seriously sexually assaulted about 5.20am.
The victim screamed before a good samaritan, who was nearby at the time, attempted to chase the offender who got away.
Detectives have released still images of a man and CCTV vision in the hope someone will come forward and indentify him.
The man is described as about 25-30 years-old with a dark complexion, medium to solid build with medium-length dreadlocks and clean shaven.
He was wearing a black-coloured hooded jumper with red-coloured 'PNG' capital letters inscribed across the chest area, black shorts with white-coloured text or insignia on the lower left leg, white socks and black sneaker style shoes.
Anyone with information or anyone who can identify the man is urged to call Crime Stoppers on 1800 333 000 or log onto www.crimestoppersvic.com.au. If sighted is urged to call Triple Zero (000).
