British Transport Police has released an image of a man they wish to speak to following an incident on a train from Glasgow.
The incident happened between 8.50pm and 9.15pm on Friday 12 July as the train passed between Glasgow Central and Uddingston train stations.
Officers believe the man may be able to assist their investigation.
Anyone who recognises him is asked to contact BTP by texting 61016 or by calling 0800 40 50 40.
In both cases, quote reference number 1900059986.
Alternatively, call Crimestoppers anonymously on 0800 555 111.
