A train guard was attacked by a man and his dog - both of whom bit him - after challenging a passenger to put the dog on a lead.
The guard approached a man at Upholland Station and asked him to put his dog on a lead before boarding the train just after 3pm on Wednesday, February 17.
British Transport Police released details and an image of a man they would like to trace today.
The man refused to put the dog on a lead, as a result the guard told him they could not board the train.
The dog then chased after the train guard and bit him on the leg.
As the guard defended himself, the dog owner punched him in the face.
He then grabbed his head and reportedly said "I'll take your eye out".
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The man then bit the guard's ear before he fled with his dog into Upholland village, police said.
Officers are currently investigating the assault at the station and today released an image in connection to their enquiries.
A spokesperson for British Transport Police said: "Do you know this man?
"Officers believe the man in the image may have information which could help their investigation.
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"If you recognise him, or have any information, officers urge you to please contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 288 of 17/02/21.
"Alternatively, you can call Crimestoppers on 0800 555 111."
