Three people were arrested over acts of disorder on Saturday during the Celtic v Rangers match.
Police said a 29-year-old, a 44-year-old and a 47-year-old were taken in by officers amid the Old Firm game at Parkhead.
Celtic won 2-1 during the match in which Rangers midfielder John Lundstram scored an own goal and was sent off.
The result means Celtic takes a big step towards retaining the cinch Premiership title.
A Police Scotland spokesperson said: “Three people, aged 29, 44 and 47 have been arrested during the fixture at Parkhead, Glasgow on Saturday, May 11 connection with acts of disorder.
“Enquiries are ongoing.”
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