The group of men, who were in the Czech Republic for their side’s Europa League clash against Slavia Prague, were filmed singing ‘Salah is a bomber’.
Campaign group Kick It Out said on Twitter: “It’s not on the terraces, but it’s still a disgrace.
“We don’t want fans like that anywhere near our game. We will be liaising with @ChelseaFC to ensure those involved are identified and punished swiftly and effectively.”
Their horror at the song was mirrored by other Blues fans.
Both Chelsea and Liverpool have since released statements condemning the group, while three of them were banned from entering Slavia Prague’s stadium where the club recorded a 1-0 win.
It is the latest incident in a long line of racist and Islamophobic abuse that has blighted football recently.
Raheem Sterling, Danny Rose and Callum Hudson-Odoi were all subject to monkey noises from the Montenegro crowd last month in England’s Euro 2020 qualifying match.
While Troy Deeney revealed he received vile messages on social media following Watford’s FA Cup semi-final victory over Wolves.
England and Man City winger Sterling was racially abused by Chelsea supporters earlier this season in their match at Stamford Bridge, leading to four fans being suspended from attending the ground.
This is the second incident of Islamophobia directed towards Salah after the Egyptian international appeared to be called a Muslim c*** by a West Ham fan at the London Stadium in February.
In Scotland, concerns have been raised about sectarian songs, with Steve Clarke and Kris Boyd victims in February.
Chelsea have released a statement following the incident condemning the actions of the individuals involved.