Do you recognise these men? Police want to speak to them after a young woman was subjected to a torrent of racist abuse on a train last month.

The five images in the photo gallery - which you can access by clicking the link above - are culled from CCTV images by British Transport Police.

The men pictured may have information about the offence, which took place on Saturday, April 20.

Between 10.50pm and 11.05pm, a 21-year-old woman from the West Ham area was racially abused by a group of six or seven men who got on the train at Rainham.

The shaken victim left the train at Purfleet, but the men are believed to have stayed on board.

Investigating officer PC Gary Martin said: “The victim boarded the train at West Ham at 10.44pm. While onboard, she was approached and abused by a group of six or seven men, who made racial insults towards her.

“Understandably, this person was left very shaken and upset by this encounter, and we will do everything in our power to find those responsible.”

The offence took place on board the 10.35pm London Fenchurch Street to Grays train, which arrived at 11.12pm, and stopped at Limehouse, West Ham, Barking, Dagenham Dock, Rainham and Purfleet.

Anyone with information about the men or the incident should contact British Transport Police on 0800 40 50 40 quoting B5/LNA of 25/04/2013. Alternatively, call Crimestoppers anonymously on 0800 555 111.