Melbourne Embona Robbery Taskforce is investigating an assault and robbery in the CBD in earlier this month.
A man and woman, both 22-years-old, were walking on Flinders Street about 4.10am on 5 August.
An unknown man approached them and struck the man to the face and pushed the woman and stole her wallet.
The woman's stolen credit card was used a short time later by a different man at multiple businesses in the CBD.
The man involved in the assault is perceived to be Caucasian, aged in his 20s with a slim build and brown hair and was wearing a light blue long-sleeved top, black jeans and black shoes.
The man involved in the deception is described as aged in his 40s with a solid build and dark hair and was wearing a black hooded top and tan pants.
Investigators have released images of the mens they believe may be able to assist with their enquiries.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential online at www.crimestoppersvic.com.au
