Police have released images of a man they want to trace in connection with an incident at a match between Rangers and Dundee United last year.
Officers said the believe the man may have information which can assist an investigation into culpable and reckless conduct at Ibrox.
The fixture on September featured a minute's silence held in memory of the Queen beforehand - however the tribute was disrupted by the crowd apparently chanting "Lizzie's in a box".
Police announced after the match they were investigating claims that Rangers fans 'threw glass bottles' at Dundee United supporters in retaliation.
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