Police in Foyle are appealing for information following an assault in William Street in the early hours of Saturday 31 March.
The assault on a 38 year old man occurred sometime between 12.30am and 1.05am. The man needed hospital treatment for head injuries including a broken nose.
Anyone with information about the incident is asked to contact Strand Road Police Station on 0845 600 8000.
Or if someone would prefer to provide information without giving their details, they can contact the independent chairty Crimestoppers and speak to them anonymously on 0800 555 111.