Police are hunting for an alleged groper who repeatedly grabbed a woman on the breast and bottom in a supermarket in Melbourne's north.
The victim, a 38-year-old Reservoir woman, told police that a man started following her at a shopping centre on Plenty Road in Preston at about midday on October 7.
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CCTV: Alleged groper flees Preston shop
Police are hunting for an alleged groper who repeatedly grabbed a woman on the breast and bottom in a supermarket in Melbourne's north.
The man grabbed her on the bottom when she quickened her stride to get away, police said.
After confronting the man, the woman then continued her shopping.
![A man police would like to speak to over an alleged sexual assault.](/web/20161016230358im_/http://www.theage.com.au/content/dam/images/g/s/1/a/9/z/image.related.articleLeadwide.620x349.gs1a98.png/1476338713409.jpg)
A short time later the man returned to the same aisle as the woman.
"The man reached out and grabbed the victim on the breast, causing her to use her shopping basket to push him away," Victoria Police spokesperson Creina O'Grady said.
The offender then struck the woman over the head with a bottle he was carrying, police said.
The victim called out for help but the man escaped by flagging down a car and being driven away.
The man is described as Caucasian, aged between 40-50 years of age, with missing teeth and a receding hairline.
Investigators have released CCTV and images of a man they believe can assist with their enquiry.
Anyone who has information about the incident is urged to contact Crime Stoppers on 1800 333 000.