Do you recognise this man?
Officers were called to the incident on Saturday, 7 March.
It is believed to have taken place between 5.10pm and 5.30pm in the men’s toilets.
The victim, a man in his 20s, is continuing to be supported by specially trained officers.
Detective Inspector Jeremy Banks said: “We’ve been conducting extensive enquiries into the incident, and we believe that the man in the CCTV image could have vital information which would assist our investigation.
“If you recognise him, please get in touch with us as soon as possible.
“Likewise, if you were in the men’s toilets around around this time, or noticed anything unusual at the station, please do let us know.
“You can do so by texting 61016 or calling 0800 40 50 40 quoting reference 340 of 09/03/20. Alternatively you can call Crimestoppers anonymously on 0800 555 111.”
Tags: Barking, Barking and Dagenham