BRITISH Transport Police officers have released a CCTV image of a man they wish to speak to in connection to a sexual assault aboard a train.

The officers would like to speak to him in connection to the incident on board a Virgin Trains London Euston to Holyhead service.

At approximately 8.22pm on September 29, a 56-year-old woman bent down to collect something from her suitcase when a man, who had just boarded the train at Chester, sexually assaulted her in the first class carriage.

When she challenged him, the man laughed and walked away. It is believed he left the train at Llandudno station.

Officers believe the man in the CCTV image may have information which could help the investigation.

If you recognise him, or witnessed the incident, please contact BTP by texting 61016 or by calling 0800 40 50 40 and quoting reference 514 of 29/09/2018. Alternatively, you can ring Crimestoppers anonymously on 0800 555111.