Three girls wearing Celtic strips were spat at and subjected to sectarian abuse on a train after the Old Firm match.

The teenage girls were travelling on a train which stopped at Old Kilpatrick in West Dunbartonshire at around 4.30pm on Saturday when the incident happened.

Two men on the platform saw the girls and started to shout sectarian abuse before one then boarded the train and spat at one of the girls.

The first man was wearing a blue top and dark trousers. He was covering his face with a union flag scarf.

The second man was wearing a black T-shirt and shorts and had a dark beard.

British Transport Police have launched a probe and are appealing for any witnesses to come forward.

Investigating officer Colin Campbell said: "This type of aggressive behaviour is totally unacceptable and will not be tolerated. The girls were obviously left very shaken by the incident, which was completely unprovoked.

"I urge anyone who was in the station at the time or travelling on board the train to come forward and help us bring these men to justice."

Anyone with information is asked to contact British Transport Police on 0800 40 50 40 or text 61016, quoting 399 of 10/9.