British Transport Police are today issuing an image following an assault on board a train between Kirkby-in-Ashfield and Mansfield Woodhouse stations.
The incident happened at around 8.50 pm on Sunday 3 March when a man was verbally abusive towards a member of rail staff.
The man then pushed the staff member causing him to injure his knee before leaving the service at Mansfield Woodhouse at around 9 pm.
Officers believe the man in the image above may have information to help their investigation.
Anyone with information is asked to contact BTP by texting 61016 or 0800 40 50 40 quoting reference number 633 of 3 March.
Alternatively, call Crimestoppers anonymously on 0800 555 111.
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