Police fired tear gas as fans of rival teams fought in the stands at a Brazilian football game Sunday.
The fighting erupted during a match in the Joinville Arena in Brazil's Santa Catalina state, interrupting the game and forcing a helicopter to land on the field to take away an injured spectator.
Images from the scene showed people in the stands throwing punches and kicks. One man wielded a metal pipe and swung it toward a fallen fan. Security forces fired tear gas into the crowd.
CNN was first alerted to the fight by tweets from Brazil.FULL STORY