A man had his jaw broken after offering to pay for damage he accidentally caused to a car in Old Bedford Road.
The incident happened at around 6.30pm on Sunday May 18 after the 36-year-old victim had accidentally scratched a deep blue or grey Volvo in Old Bedford Road.
The victim apologised to the offender and offered to pay for the damage immediately so both of them made their way to the Barclays bank in Dunstable Road.
The victim handed over cash to the offender who then punched him in the face before driving away in his car.
The victim was taken to the Luton and Dunstable Hospital where an X-ray confirmed that he had suffered a fracture to his jaw.
The offender is described as being a white Polish man, in his mid-30s, around 6ft tall, of large muscular build with short white hair.
If you have information relating to this incident, contact DC Tomlinson, in confidence, on 01582 394087.
Alternatively contact Crimestoppers on 0800 555 111.