Members of Odd Future incited a riot as frontman Tyler, The Creator signed copies of his album at a comic book store in Boston on Thursday (May 12).
Police said an officer was taken to hospital and a 13-year-old girl arrested when Odd Future climbed on top of the store and began running from roof to roof.
Fox News said police were called when fans became unruly outside the Newbury Street brownstone store. They were reportedly incited by Tyler.
Police said one officer suffered minor injuries, while a female teenager was arrested for disorderly conduct.
The incident comes just days after the rapper was hand-cuffed by police following an incident at an album signing in Los Angeles.
Tyler, The Creator released his debut album 'Goblin' in the UK and US this week.
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