Roma have branded the conduct of supporters who chanted racial abuse during Sunday's Serie A match with Napoli "appalling and unacceptable".
The racist chanting, directed at AC Milan striker Mario Balotelli, comes after the capital club were fined €50,000 by the Italian Football Federation (FIGC) due to racist chanting during a 0-0 draw with the Rossoneri on May 12.
The Giallorossi have now been fined another €50,000, and will also have their Curva Sud stand closed for the first home game of next season's Serie A campaign.
"What occurred [on] Sunday night is appalling and unacceptable," a statement on the club's official site reads.
"Roma do not want those individuals responsible as fans. The actions of this small group are hateful and also hurt our club and our loyal law-abiding supporters.
"We have not yet received a detailed report from the [Italian] league Federation but will continue to work with them and law enforcement to ensure that everything possible is done to identify and ban those involved from football stadia."