A man required hospital treatment after he was stabbed in the bum after an argument with another man in a park in Northampton.
Two men in their 20s were playing football with some friends in the pocket park in Billing Brook Road on Wednesday shortly after 8pm when an argument broke out between them and another man they did not know.
The attacker chased the two friends and used a knife to stab one of them in the arm and the other in the buttock. Both men went to hospital and required stitches for the wounds.
The attacker is black man, aged 22, 5ft 5in, with short curly hair.
He wore a grey hooded top and black trousers or jeans.