Neil Lennon believes it is a "shame" that the Green Brigade are to be dispersed around Celtic Park after failing to listen to repeated warnings about their behaviour.
The Parkhead club issued a statement yesterday confirming that they are to close section 111 of their stadium, which houses the Ultras group, known, for the most part, for banner displays and singing.
However, among other things, warnings to stop "lateral movement of spectators" and "body surfing" went unheeded and consequently supporters will be offered a refund on their season tickets or the chance to relocate.
The Celtic boss is in Sweden for the second leg of their Champions League third qualifying round against Elfsborg, looking to defend a 1-0 lead from the first game.
When asked about the issue, he said: "It is very disappointing because I think that section adds hugely to the atmosphere at the stadium.
"But there was a final warning after the Cliftonville game and that wasn't adhered to and the club have taken this decision.
"It is beyond me, it is a club decision and it is a shame that has come to this.
"But there are lines of dialogue still open so I wouldn't say this is the end but there are rules and conditions and it is all about safety at the end of the day, that is paramount to the club."