Officers investigating an incident of affray in Abington Street, Northampton, have released a CCTV image of a woman they believe may have information that could help with their inquiries.
The incident happened between 7pm and 7.45pm on Tuesday, September 7, when two women were seen having an altercation in the street.
Officers would like to speak to the woman pictured and anyone who recognises her is asked to get in touch.
Anyone with information should call Northamptonshire police on 101, quoting incident number 21000531850.
A second woman, aged 20, from Northampton, has been arrested in connection with the incident and released under investigation pending further inquiries.