A have-a-go-hero helped stop two violent thieves on a train.
The man, who does not want to be named, chased the robbers after they punched another man and snatched his iPad at Deighton railway station near Huddersfield.
He managed to catch one of the men, retrieve the iPad and detain him until officers arrived.
The incident took place at 11.50pm on Saturday, June 26 on board the 11.05pm Leeds to Huddersfield service as it arrived at Deighton.
A 25-year-old man was arrested at the station by British Transport Police. He has been released on police bail pending further inquiries.
British Transport Police detectives have released CCTV images of a man who they would like to identify in connection with the incident.
Detective Constable Gary Heseltine said: “The victim had been sat using his iPad 3 on the train. As the train pulled into Deighton station two men, who had been sitting opposite him jumped up. One of the men then punched him in the face while we believe the other then snatched his iPad.
“As both men then jumped off the train and attempted to flee, remarkably, a passenger on the train took chase and detained one of the men and retrieved the iPad.
“The victim was left with bruising and swelling to his face and is understandably shaken following his ordeal.”
Anyone with information should call British Transport Police on 0800 405040 or Crimestoppers on 0800 555111.