Some fans chanted: “If you hate the royal family, clap your hands,” while a banner bearing the same phrase was displayed at the away goal. Celtic manager Ange Postecoglou has previously expressed the club’s desire for fans to be “respectful” during any tributes. The Glasgow club have been subject to disciplinary proceedings by UEFA after fans displayed a “F*** the Crown” banner during Wednesday’s Champions League draw against Shakhtar Donetsk in Poland. Celtic lost the match at St Mirren 2-0, their first Premier League defeat in nearly a year, and Postecoglou chose not to comment on the chants. “I mentioned all this in two press conferences, I’m not going to do it in three,” he said. “I understand why there’s interest, but I’m a coach in a football team and I sit in press conferences and I want to talk about football. “We’ve dealt with this issue, we’ve done what we need to do, it’s time to move on.” Celtic fans hold a banner before the Premiership match at St Mirren (PA Wire) There have been interruptions to the tributes in some of Saturday’s Premiership games. A minute’s silence at Ibrox was broken by Dundee United fans. Hoots and boos could be heard from the corner of the stadium which was home to several hundred away fans before Rangers played ‘God Save the King’. In a brief statement, Dundee United later said they had “reached out to inform our supporters of the pre-match arrangements in the expectation that the delicate silence will be observed”. There were similar reactions ahead of Hibernian’s game with Aberdeen at Easter Road, where boos and shouts could be heard during a minute’s applause. The Scottish Football Association had postponed all matches the previous weekend following the Queen’s death and given clubs the choice of whether and how to pay tribute when matches resume. In a joint statement with the Scottish Professional Football League on Monday, the SFA said: “This week, as a mark of respect and in line with the period of national mourning, home clubs may wish to observe a period of silence and/or play the national anthem shortly before kick-off and players may want to wear black armbands.”