INVESTIGATORS have released this image of a man wanted in connection with an incident where a Tube passenger exposed himself in front of women on two trains and sexually assaulted one.

The first victim boarded an Uxbridge-bound Piccadilly line train at Sudbury Hill station and during the journey the man approached her before exposing himself.

He then tried to strike up a conversation before touching her indecently.

British Transport Police (BTP) detectives are appealing for information after the incidents on Wednesday, October 3, between 7.30pm and 8pm.

Sergeant Thanh Ly, the investigating officer, said: “When the train arrived at Uxbridge both the victim and the man got off and he quickly ran towards the Metropolitan line before boarding a train bound for Baker Street.

“The man then approached another woman [on this train] and exposed himself to her.

“We’ve carried out a number of enquiries to try and establish the man’s identity, including speaking to witnesses and circulating images on police intelligence systems, but to no avail so far.

“If you recognise this man, or have any information that could help our investigation, please contact us.”

The man appears to be have worn black trousers, a black T-shirt or shirt and a black jacket, and has curly hair.

n Anyone with information should contact the BTP on Freefone 0800 40 50 40 quoting reference 5/LUA of 14/12/12 or Crimestoppers anonymously on 0800 555 111.