Two people were "punched and kicked" by a group of four to five men before being robbed.
The incident happened at around 9.45pm on Saturday, April 24 in the Hartcliffe area of Bristol.
The victims, a man and a woman in their 40s, were approached by a group of four-five men in a blue car on Teyfant Road who made a derogatory comment towards the female victim.
Avon and Somerset Police said in a statement: "The victims were then followed towards the corner of The Groves and Bishport Avenue and subsequently punched and kicked by the offenders, leaving them both with bruising.
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"The victims’ mobile phones were stolen during the incident and were later recovered damaged."
Officers are now investigating the incident and asking for witnesses to come forward.
Anyone who can help is asked to please call 101 and give the call handler the reference number 5221088709
You can contact the independent charity Crimestoppers 100 per cent anonymously on 0800 555 111 or via their Anonymous Online Form.
No personal details are taken, information cannot be traced or recorded and you will not go to court or have to speak to police when contacting Crimestoppers.
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