The British Transport Police are appealing for information after a train driver was attacked on the train when it stopped at Bearsden station.
The assault happened on Sunday (July 27) at around 5.20pm on the 5.11pm Milngavie to Motherwell service.
While the train was stationary the 28-year-old male driver, who was in his cab, was approached by a man in his 50s. He verbally abused the driver and then punched him in the face.
The victim was taken to the Western Infirmary and released after he was treated.
The suspect is described as having short grey hair with glasses and he was wearing a blue t-shirt and grey trousers.
Detective Constable Jim Duncan, the BTP officer in charge of the enquiry, said: “Members of rail staff should be able to carry out their duties without encountering such despicable behaviour. I am appealing for anyone who was on the train or at the station and can help the man responsible to contact BTP.”
Phone the British Transport Police on 0800 555 111 or by texting 6106.
Information can also be given anonymously to Crimestoppers on 0800 555 111.