Bayern CEO Karl-Heinz Rummenigge slammed a section of the club's fans who attacked Schalke supporters in violent clashes in Gelsenkirchen on Saturday.
Rummenigge stressed that Bayern "dissociates itself unequivocally" from the "so-called supporters" who were involved in what police described as an "extremely violent attack".
"Violence cannot and should never be tolerated," Rummenigge said in a club statement.
"I expected that fans of FC Bayern appropriately behave sensitively. Almost all have done that, but unfortunately not all, and I am very disappointed."
"Local police responded well considering the difficult situation of escalating violence," he added.
Bayern beat Schalke 3-1 to extend their lead at the Bundesliga summit to eight points, with David Alaba, Javi Martinez and Thomas Muller on target for Pep Guardiola's men.
