Man sexually assaulted on Brighton-to-London train
Police are appealing for help in identifying a man suspected of sexually assaulting a male passenger on a Brighton-to-London train.
British Transport Police have issued a CCTV photo of a man they would like to speak to about the attack on 14 August.
A man in his 20s, from Burgess Hill, was travelling on the 11.02pm service to London Victoria, awoke during the journey to find his trousers undone.
The suspect was chased through the carriage but got off at East Croydon.
Det Con Andy Parkinson, said: "We have spoken to a number of people who were travelling in the same carriage and witnessed the assault... and now we are appealing for help from the public to identify this man.
"This was understandably an upsetting experience for the victim, and this sort of behaviour is completely unacceptable.
"We are now asking for the public's help to identify this man - if you think you can name him, or are the man himself, we want to hear from you.
"I am also asking anyone who was on the train at the time to come forward and assist our investigation."