Fort Collins, Colo. (AP) - Fort Collins police used rubber bullets to disperse a crowd of fans after Colorado State University upset the University of Colorado in the schools' annual football showdown.
Police shut down a part of downtown after Colorado State's 23-17
win Sunday over CU to let students celebrate.
Officers then put on riot gear and fired nonlethal rubber bullets to break up the quickly growing crowd.
Officer Kevin Cronin says police were worried that different groups in the area would merge into one big crowd.
Boulder police say they were busy during and after the game on the CU campus.
About 75 people were ejected from the game and 15 others were taken to an alcohol detoxification center.
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