Police are appealing for information following a serious assault in Fore Street, Trowbridge, which occurred at around 3.15am on April 20.
Following an altercation between a group of young men, an 18-year-old man from Westbury was punched to the face and fell to the floor.
He sustained a broken jaw, which required surgery at the Royal United Hospital.
PC Carol Lovelock said: “I would like to speak to anyone with information who was in the area at the time and may have seen this incident involving a group of males.
“It is often the case that the smallest piece of information can help with our investigation, and I believe that there may have been people in the area who witnessed the incident and may know some of the individuals involved.”
Anyone with information is asked to contact PC Carol Lovelock of Melksham CID on via 101 or contact Crimestoppers anonymously on 0800 555 111.