British Transport Police has released a CCTV image of a man they would like to speak to in connection with three sexual offences that have taken place on trains this year.
Officers have launched an investigation following a series of sexual offences on services within the Berkshire area.
The first incident happened on January 23 at 8.17pm. A man boarded a service at Slough station, and during the journey to London Paddington, the man sat diagonally opposite a woman and began touching himself inappropriately. The man is believed to have left the service at Ealing Broadway.
The second incident happened on May 3 between 12.15pm and 1.30pm on a Reading to Paddington service. The man exposed himself and touched himself inappropriately.
The third incident happened on May 23 on a Windsor service. A 16-year-old girl boarded the train at Staines at 12.07pm. A man walked in from another carriage and sat opposite the girl.
The man was touching himself over his clothing. A ticket inspector came through and approached the male, he then swore at the ticket inspector and ran off down the train.