21 February 2015
Last updated at 09:05
The racist chanting happened after the men travelled from Paris Gare du Nord to St Pancras International
Police are investigating racist chanting at St Pancras station by men thought to be Chelsea fans returning from a Champions League match in Paris.
It comes after an incident of alleged racism by Chelsea supporters on the Paris Metro, when footage showed a black man being pushed from a train.
The chanting in London happened on Wednesday evening, the day after the club’s 1-1 draw with Paris St-Germain.
British Transport Police say anyone with information should contact them.
Chelsea has already barred five fans from attending Stamford Bridge following the earlier incident.
It took place at Richelieu-Drouot station in the centre of the French capital on Tuesday ahead of the club’s 1-1 draw with Paris St-Germain.
Manager Jose Mourinho has said he was “ashamed” by the alleged racism.
The Metropolitan Police has released CCTV images of three men they are looking for in connection with Tuesday’s incident.
CCTV shows the three men sought over an earlier incident, which happened on the Paris Metro on Tuesday
Superintendent Gill Murray of the BTP said of the new allegations: “The racist chanting was reported by a member of the public who was disgusted by the behaviour of the men who had travelled on the 18:40 service from Paris Gare du Nord.
“The men shouted as they walked through the station having alighted from the train a short time earlier.
“If you travelled on the train from Paris or were at the station and have information which can assist our investigation I would urge you to get in touch as a matter of urgency.”
She said more needed to be done to “publicly condemn” such behaviour, adding that BTP is working with football clubs to tackle the issue.
“It’s clear that unfortunately there is still a minority who think it is acceptable to behave in such an abhorrent manner,” added Supt Murray.
The alleged victim of the Metro incident, who has since been identified as 33-year-old Souleymane S, said the fans “should be locked up”.
Speaking to BBC Radio 5 live’s Drive on Friday he said: “I felt truly wounded to the bottom of my heart that I really couldn’t believe it.
“We’re in 2015, aren’t we, and we’re in France. We’re in a civilised country and when you are in a civilised country there are certain things you can’t do.
“For me, it’s a humiliation. I was humiliated in my country. I was humiliated in front of my family, humiliated in front of my mother and father.”
A group of people can be heard singing “we’re racist, we’re racist and that’s the way we like it” in an amateur video taken at the Paris Metro.
Chelsea has said it will ban the five suspended fans from attending Stamford Bridge for life if there is sufficient evidence of their involvement in that incident.
A club spokesman said they were writing to Souleymane to “apologise unreservedly” and invite him to attend a game as their guest.