THIS man is being hunted by police after a woman said he touched himself in appropriately in front of her on a train.

British Transport Police released the photo today following the alleged incident earlier this month in South Oxfordshire.

The force says it is investigating an accusation of 'outraging public decency'.

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The woman said she was on a train to Henley-on-Thames on December 13 when the man got on at Twyford shortly after midnight and sat down facing her.

She said he then exposed his genitals and began to touch himself inappropriately.

Officers have not accused the man but said they 'believe the man in the image may have information which could help their investigation'.

If you recognise him or have any information please contact BTP by texting 61016 or calling 0800 40 50 40, quoting reference 405 of 13/12/19.

Alternatively you can call Crimestoppers anonymously on 0800 555 111.