Liverpool manager Jurgen Klopp has said anyone involved in "tragedy chanting" should be ashamed of themselves.
Ex-Reds defender Jamie Carragher accused a section of Luton fans of chants that indirectly referenced the Hillsborough disaster during Sunday's 1-1 draw.
Klopp, who said he did not hear the chants himself, commented: "Shame on everyone who said it."
Carragher told Sky Sports: "We're better than that."
Klopp has previously spoken out against tragedy chanting between rival supporters, and in July the Football Association issued a new charter outlining rules for dealing with the problem.