Eye witnesses said the crowd started throwing rocks and bottles at the police. An area was quickly cordoned off by police cars and helicopters hovered overhead with searchlights on as a series of running skirmishes took place.
"The trouble started at 2350 because nobody else was going to be allowed into the Budweiser tent because it was closing at midnight," a youth calling himself G.A. said.
"Everybody was packed into the street and everybody started stealing each other's beer and throwing bottles. The police came and one of them was hit in the face by a bottle.
"The police started firing rubber bullets. Then the crowd got really wild and starting chanting "U S A" and hurling bottles at windows."
Brandon Bolan, 17, from Salt Lake City showed reporters an injury on his shin which he said was caused by a rubber bullet.
"None of us had been drinking, we were standing watching police and the cops told us to leave. I held my camera to take a picture and the police fired at the ground in front of me and the bullet hit me in the leg.
"We were just leaving and we only stopped to see what was happening."
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