A MOTHER says abuse of retail staff needs to stop after her son who works at Sainsbury's was hospitalised on Wednesday after being assaulted after his shift.

Thames Valley Police were called to reports of an assault in Market Square, Bicester, at 8.17pm on Wednesday.

ALSO READ: Thug threw phone at pregnant woman during row in Oxford

The victim, a 40-year-old man, suffered a head injury, and was taken to the Horton General Hospital for treatment.

A 15-year-old boy and a 14-year-old boy, both from Bicester, have been arrested on suspicion of assault occasioning actual bodily harm and remain in police custody.

The victim's mother, who has asked not to be named, said: "This sort of attack on retail staff has to stop, they provide a service and it’s not fair." If you witnessed the incident call 101, quoting 43200405944.