Police investigating disorder following a football match between Leeds United and Barnsley have released an image of a man they are trying to trace.
West Yorkshire Police said he could prove vital to the investigation which has already seen five men have been arrested on suspicion of public order offences following the game at the Oakwell Stadium on Saturday January 21.
Of those five, three have been charged with public order offences and two have been bailed pending further enquiries.
Officers are continuing to investigate the incident, working closely with the both clubs and British Transport Police.
Anyone who believes they may know the identity of the man or who has any information is asked to contact 101, or anonymously via Crimestoppers on 0800 555111, quoting incident number 336 of 21 January 2017.