A man received treatment for a fractured jaw after he was assaulted in Morpeth town centre.
The 27-year-old was approached by an offender in Bridge Street, who attacked him before making off, at 1am on Sunday, February 7. The victim had to be taken to hospital as a result.
Inquiries into the incident are on-going.
Anyone who may have witnessed the assault, or have any information to help, is asked to contact police on 101 – quoting reference 0789 09/02/16 – or the independent charity Crimestoppers anonymously on 0800 555111.