Chelsea fans have been filmed chanting racist songs, while not allowing a black man to enter the train after the clash against Paris Saint-Germain.
A Chelsea spokesperson said that the club does not support racism and the necessary action will be taken once further investigations completed.
“Should evidence point to the involvement of Chelsea season ticket holders or members of the club, we will take the strongest possible action against them including banning orders," he told The Guardian.
In the footage filmed by British expatriate Paul Nolan, a number of Chelsea fans can be seen yelling racial chants after not allowing a black man to get on the same train as them.
"We're racist, we're racist and that's the way we like it,” were the chants heard in the amateur video.
Thousands of Chelsea supporters were in Paris on Tuesday night where their team were held to a 1-1 draw against PSG.
Racism has no place in football. Do you believe that clubs are doing enough to stamp out racism in their fan bases?