A man is in a stable condition in Northampton General Hospital after being stabbed during an argument in the town centre.
The victim and his friend became embroiled in an argument with three other men while in Millennium Pizza in Gold Street, just before 5am yesterday.
The argument continued outside, where punches were thrown.
One of the men then chased the victim and his friend up Gold Street, on the side opposite to the Travelodge. before running into College Street where the victim tripped and fell, at which point the offender jumped on him and stabbed him in the stomach and back.
The offender then ran off back along Gold Street.
Police say several people would have witnessed the incident as the street was busy and there were people standing outside the Travelodge.
The main suspect is black, about 6ft with a medium build and very short Afro-style hair . He was wearing a light grey top with a zip-up navy blue fleece and black tracksuit bottoms with logos on the legs.
The victim, a 30-year-old man, remains in hospital with what police have described as “non-life threatening injuries”.
Anyone with information can call Northamptonshire Police on 101 or, alternatively and anonymously, Crimestoppers, on 0800 555 111.