A man received a suspected broken cheekbone after he was punched several times in the face during an assault.
Police are appealing for information after the incident in Lancaster town centre.
The victim was at the Halifax cash machine on Penny Street talking to three women who had been on a night out.
The three women are reported to have been arguing with a man who then went on to follow the 22-year-old into an alleyway and punched him several times in the face.
The man is described as a white man, approximately 5ft 6, with short straight blonde hair.
The incident happened at 2.30am on Sunday, September 7. Call 101.