SEATTLE, Wash. (Metro) -- Seattle police say a dispute between members of a University of Washington fraternity and an outside group turned violent earlier this week. Officers said a number of men forced their way into a frat house near Northeast 45th and 19th Avenue Northeast Wednesday evening and engaged in a in a multi-floor brawl with fraternity members. Six men were injured. Two fraternity members were hospitalized. Seven men were arrested. The report at "Seattlepi.com" did not name the fraternity. Copyright © 2012 Metro Networks Inc.