Police are seeking a gang of men, reported to be Chelsea fans, who were heard shouting racist chants the day after the Paris Metro incident.
The new incident, which has come to light this morning, happened at London St Pancras on Wednesday evening, the day after fans of the club allegedly stopped Soulemayne S. boarding a Paris Metro train and chanted racist songs at him.
An investigation is currently under way after a member of the public reported the men, who had travelled by train from Paris Gard du Nord, to British Transport Police; it is believed the men were travelling home after Chelsea's 1-1 draw with Paris Saint-Germain.
Soulemayne S. was invited to watch the second leg of the tie but has turned down the offer.
"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 6.40pm service from Paris Gard du Nord," said Superintendent Gill Murray of the British Transport Police.
"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."
Ms Murray added: "It's clear that unfortunately there is still a minority who think it is acceptable to behave in such an abhorrent manner. There is more that needs to be done to publicly condemn this type of behaviour and British Transport Police is actively working with football clubs, the football authorities and other key agencies to tackle this appalling behaviour."
Five people have so far been suspended from Stamford Bridge in connection with the original incident, with Chelsea promising to offer life bans for anyone involved.
Images (above) have been released in a bid to identify a trio of men whom the Metropolitan Police believe were among a group of Chelsea supporters to stop Soulemayne S. boarding the train.
Additional reporting from PA
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