A passenger was left with a shattered jaw after he was battered with a baseball bat and threatened with a knife as he waited for a train.
The 30-year-old, who was waiting on platform four of Leyland station, was struck so hard by his attacker the bat snapped.
Detectives from British Transport Police (BTP) are appealing for information after the bungled robbery.
The victim, a Chorley man, was waiting for a train at around 7pm on Friday May 2 when he was approached by a man who asked him what he had in his bag.
The robber attempted to wrestle the bag from the victim, brandished a baseball bat and began to strike him.
The man suffered a deep cut to his ear, arm injuries and a broken jaw.
He was also threatened with a knife during the ordeal.
The offender eventually fled empty-handed on foot in the direction of Golden Hill.
DC Mick Millward, of BTP, said: "This was a particularly nasty assault where the offender struck the victim repeatedly with such force that the bat snapped.
"We have carried out enquiries in the local area and are now examining CCTV footage as well as carrying out forensic tests on part of the broken bat.
"I am appealing for local people to come forward if they recognise the description of this offender or have any information that can assist the investigation."
The robber was a white man, aged approximately 18 to 20, 6ft tall and of slim build. He wore tracksuit bottoms, trainers, a baseball cap and a blue hooded top which had blue vertical piping down the front. He spoke with a local accent and is said to have had a chubby face.
Anyone with information should contact DC Millward at BTP on 0800 405040 or Crimestoppers on 0800 555111.
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