POLICE are appealing for help in finding a man who performed an indecent act on a train.
British Transport Police (BTP) said the unknown man subjected a 24-year-old female passenger to "lewd behaviour" before performing an indecent act on himself.
Officers have released a photograph of a man they want to talk to connection with the incident, which happened on the 5.06pm Cardiff Central to Treherbert service on Tuesday.
BTP detective inspector Mark Cleland said: “This was, quite understandably, a traumatic and extremely upsetting experience for the victim.
“We are anxious to speak to this person as we believe he may have key information that could assist us with our enquiries.
“We believe he got off the service at Treorchy, and I would ask anyone who recognises him, or who may have any information about the incident, to please come forward and talk to us as a matter of urgency. Your information could be vital to this investigation."
He added: “Fortunately incidents such as this are rare on the rail network, but are always treated extremely seriously. I am now calling on the public to help bring this individual to justice.”
Police have also released a description of a man they want to talk to - he is described as white, in his late 20s to early 30s, around 5ft 6in tall, and of a stocky build. He has a black "tribal" tattoo on his left forearm, and was wearing black jogging bottoms, a navy shirt over a white T-shirt, and a grey and black bobble hat with earflaps.
Can you help? Call British Transport Police on 0800 405040 quoting reference WCA/B5 of 10/01/2014, or Crimestoppers anonymously on 0800 555111