A man is wanted by police after he was seen committing a solo sex act on the train to Glasgow.

A woman travelling to Queen Street Station noticed the man around 6.50pm last Tuesday, sitting at a window seat on a row of seats. 

He was committing the sex act while watching a video on his phone, between Polmont and Falkirk High stations.

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The man is described as white, of medium build, and between 20 and 30 years of age.

He had dark shaved hair in a buzzcut, stubble, and was wearing a tight white top and light-coloured trousers.

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British Transport Police have launched an investigation and are appealing for anyone who witnessed the incident to get in touch.

BTP can be contacted by texting 61016 or calling 0800 40 50 40 quoting reference 560 of July 19.

Alternatively you can call Crimestoppers anonymously on 0800 555 111.