BT Sport were forced to apologise after showing an offensive banner during the Champions League clash between Shakhtar Donetsk and Celtic.
Celtic fans revealed a banner which reads 'F**k the Crown' in their end of the stadium.
BT Sport cameras panned to the banner, with the play-by-play commentator apologising for showing it during their broadcast.
It comes after Queen Elizabeth II's passing last Thursday.
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Her death led to the cancellation of fixtures in the UK, with Bayern Munich fans protesting against the impact of the Queen's death on fixtures.
Their supporters revealed a banner during their match against Barcelona on Tuesday, which read: "Last minute match delays and bans because of a royal’s death!? Respect fans!"
Celtic's cross-town rivals Rangers, meanwhile, have urged their fans to arrive early for their Champions League match against Napoli tonight as they plan a tribute for the Queen.
"Her Majesty Queen Elizabeth II will be honoured this evening at Ibrox with a minute’s silence, a display created by the Union Bears, and a rendition of the Nation Anthem," the club tweeted.
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"If you are attending tonight’s match, we encourage all supporters to be in their seat for 19:50."
Featured Image Credit: BT Sport