A woman was the victim of upskirting whilst travelling on board a train.

The incident happened between 9.50pm and 10.05pm between Glasgow Central and Clarkston stations on Saturday, February 9.

A man allegedly used his phone to take pictures of a woman as she stood in the aisle.

A passenger then alerted the victim to the offence, who then challenged the suspect.

The man, who is believed to be aged between 40 and 50, left the train at Clarkston, however officers believe he originally intended to travel to East Kilbride.

Officers would like to speak to anyone who witnessed the offence, especially the female passenger who alerted the victim.

If you have any information that could help the investigation, contact British Transport Police on 0800 40 50 40.