Greater Glasgow police said three officers were injured and more than 20 arrests made as supporters marched into the city centre from the club's Ibrox Stadium after completing an unbeaten season with a 4-0 win over Aberdeen to win the Scottish Premiership for the first time in 10 years. A spike in positive cases in Glasgow saw the Scottish government on Friday maintain restrictions on indoor mixing of households and hospitality in the city that will be eased for most of Scotland on Monday.
"To say I'm utterly disgusted by the Rangers fans who rampaged through the city would be an understatement," Sturgeon said in a series of tweets on Sunday. George Square in Glasgow city centre was littered with broken glass. Videos posted on social media also showed fans singing sectarian songs and hurling missiles towards police.