WATCH ABOVE: Police storm the Union Rooms as a flare is let off outside
Five Exeter City fans and one Plymouth Argyle supporter were arrested following ugly scenes on Devon Derby day.
And cops say more could follow as they probe reports of disorder at the Union Rooms pub ahead of Saturday's game.
The Pilgrims soundly beat their arch rivals 3-0 in the big League Two clash.
But the match was almost overshadowed by events off the field.
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