Celtic have lost 2-nil at St Mirren after a number of their supporters chanted against the monarchy during a minute's applause for the Queen.
The champions' lead at the top of the Scottish Premiership remains at two points, as Rangers narrowed the gap yesterday.
St Mirren are up to third.
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Franny Kiernan reports
Hearts are up to third - five points behind Celtic - after winning 3-nil at Motherwell.
