Police officers have released a CCTV image of a man they wish to speak to after an assault at the Grand Union Canal in Cotton End, Northampton.
The incident took place in June when a family were attacked with pieces of wood by a group of males.
The man in the image or anyone who recognises him should call Northamptonshire Police on 101.
A 44-year-old man has been arrested in connection with this incident and released on police bail pending further enquiries.
Incident number: 22000345800