Police Launch Fresh Fan Probe  (Sky Sports)

Police have launched a fresh probe into the behaviour of men thought to be Chelsea fans after the Champions League match against Paris Saint-Germain.

The Premier League leaders became embroiled in controversy after a black commuter was blocked from boarding a train in Paris by what appeared to be a group of fans travelling to the Parc des Princes on Tuesday night.

British Transport Police are now investigating a second allegation of racist chanting by a number of men, believed to be Chelsea supporters, at London's St Pancras station on Wednesday.

The alleged incident happened at about 8pm, with the men having travelled from Paris Gard du Nord station on the Eurostar.

BTP are appealing for witnesses and Sky Sports News HQ reporter Amy Lewis said: "The incident was reported by a member of the public who was outraged by the behaviour. The people were shouting as they went through the station after alighting from the train."

Police spokeswoman Gill Murray said that she was not in a position to say whether the fans involved at St Pancras were connected with those implicated in the Paris episode.

She told Sky Sports News HQ: “This is very much still in early stages so we cannot say whether they are the same people at this stage.

“So far what we know is that these men are, believed to be Chelsea supporters, so we are appealing to anyone who travelled from Paris by Eurostar and may have heard inappropriate behaviour to come forward.

“The majority of supporters act appropriately and support their teams in the right manner. One incident of unacceptable behaviour is not right so we must all address it. We must work together with the clubs and Chelsea are working closely with us. If you have any information we would like to hear from you.

"It is clear that there is still a minority who think it is acceptable to behave in such an abhorrent manner. The BTP are working actively with football clubs and the relevant authorities to tackle this appalling behaviour."

On Friday, Chelsea expressed their outrage at the events in Paris, condemning the actions of the alleged supporters and banning five fans from Stamford Bridge as part of the ongoing investigation.

Reflecting on the Metro incident, Chelsea manager Jose Mourinho said: "We feel ashamed but maybe we shouldn't because I refuse to be connected with these people.

"I'm connected with Chelsea and so many good things this club defends and represents. I left Chelsea in 2007 and I couldn't wait to be back. It's not because of people like this that I wanted to be back.

"I felt ashamed when I knew what happened, but I repeat, I'm a proud Chelsea manager because I know what this club is. These people don't represent the club."