Police Scotland said a report would be sent to prosecutors about football-related disorder at the match in Dingwall.
Match commander Colin Gough said the disorder was "disappointing" and that more arrests were possible.
Dundee United won the match 3-2 after a late goal by Billy Mckay.
Ch Insp Gough said:  "It is disappointing that a small minority of fans were involved in disorder in the ground.
"Disruptive behaviour will not be tolerated in any format.  Inquiries are continuing and there is potential for further arrests."
Seven men were arrested in connection with trouble at Saturday's Scottish Cup quarter final game between Ross County and Dundee United.