Lincolnshire Police are looking for information on a man and woman pictured in the CCTV image above.
This is in relation to an assault, which happened at around 3.15pm, March 13, in Cornhill, Lincoln.
A 21-year-old man got into an argument with a man and women at the burger kiosk.
He was then punched and scratched by the couple, near the bank.
Police are after the pair in the image and would like anyone who knows them to help with enquiries.
Contact 101 and ask for PC Steve Hay at Lincoln CID with information.