MANDURAH Detectives are investigating an assault in Dawesville, which left a man with a broken jaw.
Police claim the 32-year-old victim was at the service station on Dawesville bypass on September 25.
The victim became involved in an argument with a male youth in his mid-teens.
As he bent down, the youth struck him on the jaw with a closed fist. The youth fled the scene, running in front of a truck travelling on Dawesville Bypass and was almost hit.
The man required treatment for a broken jaw (two places) and a number of dislodged teeth.
Mandurah Detectives wish to speak to anyone who witnessed the assault, in particular two people who were walking on Dawesville Bypass at the time.
Anyone with information are urged to call Crime Stoppers on 1300 333 000 or online at Crime Stoppers.