Liverpool have condemned an offensive banner of Divock Origi displayed in the away end before the Champions League match in Genk.
The club in a statement on Wednesday also demanded that Genk should identify those responsible for bringing the banner into the stadium.
The banner, featuring a photoshopped picture of the striker, was taken down as soon as the club were made aware of its existence.
The statement read: “Liverpool Football Club condemns the offensive banner displayed in our section of the ground, prior to kick-off.
“To be clear, the image used perpetuated a racist stereotype. This is completely unacceptable.
“We acted swiftly to have the banner removed and we are now working with the local authorities and stadium team in Genk to identify those responsible.
“Any subsequent action will be taken in keeping with our sanctions process.”
After the racist incident, Alex Oxlade-Chamberlain scored two wonderful goals on his first return to Champions League action in 18 months as Liverpool beat Genk 4-1 on Wednesday.
There was another sensational effort from Oxlade-Chamberlain in the 57th minute, which was followed up by more delightful goals from Sadio Mane and Mohamed Salah.
Stephen Odey replied for Genk, who deserved a goal for their performance, but Liverpool were just too strong.
It brings an end to a bizarre four-game losing run in away Champions League group stage games for Liverpool, who remain second in Group E after Napoli beat Red Bull Salzburg 3-2 in the other fixture. Genk stay bottom with one point.