Police are investigating following thefts from a Narre Warren store on Sunday 3 March.
Investigators have been told seven people entered the Link Road store about 4.45pm.
Members of the group stole two giftware items.
Police have released CCTV images of some of the people who they believe may be able to assist with their enquiries.
They are all perceived to be Maori or Pacific Islander in appearance.
Police are searching for a woman in her early to mid-20s. She was last seen wearing a grey hooded jumper and blue jeans and had her hair tied in a bun.
The second woman is in her mid to late 20s with long dark hair and was last seen wearing a black jumper and a red top.
The third woman is in her mid to late 30s with dark hair tied back. She appears to have tribal style tattoos on the top of her right hand and left shoulder. She was wearing a purple “raptors” sleeveless top and dark pants.
A male offender is in his mid to late 20s with dark hair. He was wearing a long black over coat and blue jeans.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au