Celtic fans punctuated minutes of applause in memory of the Queen before her game against St Mirren on Sunday by singing anti-royal chants.
The Scottish FA had left it up to individual clubs to decide whether to pay tribute to the Queen this weekend following her death earlier this month.
At most UK games, fans and players observed a minute’s silence and sang the national anthem before kick-off, but this time there was a minute’s applause.
However, chants could be heard above the Celtic side’s applause as fans chanted, “If you hate the royal family, clap your hands.”
Supporters also held up a banner with the same message while there were audible boos before the minute-long applause even started.
Celtic players and coach Ange Postecoglou applauded the whole minute before the referee blew his whistle to signal that 60 seconds had gone by.
After the applause, the national anthem was not played as the game started shortly after.
The reaction from Celtic fans comes just four days after they also expressed their displeasure with the monarchy during their side’s Champions League game against Shakhtar Donetsk.
Fans held a banner in the stands that read “F*** the Crown” while another message read: “Sorry for your loss Michael Fagan”.
Fagan famously managed to scale the walls of Buckingham Palace before sneaking into Her Majesty’s bedroom while she slept in 1982.
The then-painter and decorator, who suffers from schizophrenia, spent about 10 minutes talking to the monarch about his family.
The late monarch thought Fagan was just a drunken employee who was eventually attacked by a servant on duty.
Celtic fans aren’t the only fans to disrupt the Queen’s tributes this weekend.
Dundee United fans chanted ‘Lizzie’s in a box’ ahead of their game against Rangers on Saturday, sparking outrage from the home crowd at the Ibrox.