A violent scene just steps from the University of Iowa turned chaotic early Sunday when a massive brawl suddenly erupted into gunfire, leaving three students wounded. Cops say they were called to Iowa City's Pedestrian Mall for a large fight ... but things escalated fast when shots rang out in the middle of the melee. Video from the scene shows dozens of people throwing punches before panic sets in, with crowds sprinting in every direction as gunfire erupts. Coachella Weekend 2 hit full