CCTV footage of a group of men being sought in connection with a sexual assault on a woman handing out flyers in Brisbane's CBD has been released by police.

About 10:25pm on March 4, a group of men approached two women handing out business cards outside a licensed premises on Eagle Street.

Police said one of the men inappropriately touched one of the women on the chest, leaving her with an injury.

He also took a number of business cards the woman was holding before the group fled on foot north on Eagle Street towards Charlotte Street, entering a Mexican restaurant.

Police want to speak to any of the men seen in the footage but say they primarily want to trace a man who was described as Caucasian with a tanned complexion and tall with brown hair.

He was wearing a pink dress-shirt.

Police have urged anyone who recognises the man or the group he is with to contact police or Crime Stoppers on 1800 333 000.