Eleven football supporters were arrested at Scotland's match with Northern Ireland for minor offences.
Two people were arrested inside Hampden Park and nine were arrested outside the stadium in Glasgow before the match.
Police said all arrests were for "low level disorder".
Scotland won the friendly match 1-0 with defender Christophe Berra scoring the only goal of the game.
The match was part of preparations for Scotland's Euro qualifier match with Gibraltar at Hampden on Sunday.
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