article_snippet.sent: Five Chelsea fans were caught on film directing racist abuse towards a black passenger in France .
article_snippet.sent: Fans appeared to be chanting on the Paris Metro train: '
article_snippet.sent: Supporters have come under scrutiny (none of the fans pictured are necessarily referred to in the story)
article_snippet.sent: In February a storm erupted after Chelsea supporters were filmed allegedly singing racist chants as a black man was prevented from boarding a train in Paris.