CCTV pictures have been released after a serious assault at Worcester Foregate Street Station.
The attack happened just before 8pm on Friday when the victim was targeted by two men just outside the station.
During the assault he was repeatedly punched and stamped on whilst he lay on the ground.
British Transport Police officers and paramedics attended the scene and the victim was taken to a local hospital where he remains in a critical condition.
Detectives believe the men in the CCTV images may have information that could assist their ongoing investigation.
Anyone who recognises either of them should text 61016 or call 0800 40 50 40.
Information can be given anonymously to Crimestoppers on 0800 555 111.
