SHEFFIELD United officials have handed police a dossier of information following claims of ‘ISIS’ chanting during last month’s Yorkshire derby against Bradford City.
The club said it had identified “a number of individuals” from recent home and away fixtures, using CCTV.
Club officials this week handed out banning orders to several fans.
Inquiries began after smoke bombs were thrown by Blades fans, with what the club called “additional inappropriate language and behaviour” reported at Bramall Lane.
Sheffield United safety officer Steve Hicks said: “Quite simply we are determined to bring to a swift end this inappropriate behaviour by a group of fans.”
“This week’s banning orders indicate that we are wheedling out the troublemakers and we will continue to do so to protect the reputation of the Club and the impact on other fans.”
He added: “Each Football League club is responsible for the actions of its own supporters – home or away - and the actions of a minority is putting the lives of fellow supporters in danger as well as potentially putting the Club at risk of costly and severe sanctions from The Football Association.”
Sheffield United said in a statement: “The Blades will take every step to track down and deal with those who ignore the ground regulations and through their inappropriate language and actions cause offence and ruin the match day experience for other supporters.
“Sheffield United is an inclusive family and community orientated Club where everyone is made to feel welcome and it endeavours to improve on this principle year on year.”
The Football Association is looking into claims of the alleged racist chanting from Blades supporters towards Bradford fans during post-Christmas League One match at Bramall Lane.
One Sheffield United season ticket holder, Ramon Mohamed, 55, said: “I was disgusted. “I could make out they were singing ‘You’re just a town full of ISIS’ towards the Bradford fans. It’s like a return to the dark ages,” he said. “It saddens me that I’m talking about this but racism moves in mysterious ways and takes new forms.”