Police are hunting for a man after a woman was sexually assaulted on a train in east London.
The incident occurred at around 12.40am on Sunday August 2, on a District Line train at Barking railway station.
A woman was stood on the train and was sexually assaulted by a man as he left the service.
British Transport Police (BTP) detectives have released images of a man who they would like to speak to in connection with the attack, as he could have information that may assist their enquiries.
Anyone who recognises him has been urged to text BTP on 61016, or call 0800 40 50 40, using the reference 98 of 2 August, or to contact Crimestoppers anonymously on 0800 555 111.