Police are looking for a man who exposed himself on a train travelling from London Marylebone to Bicester North.

The man, who was caught on CCTV, was on board the 8.24 service to Bicester North on Friday, May 15, and exposed himself as the train passed through High Wycombe. He is believed to have left the train at Bicester.

Anyone with information should call Crimestoppers in confidence on 0800 555111.