Prosecutors said Friday they will not file charges against Kansas football and men's basketball players in connection with fights between the two squads in September.
University campus police investigating the disturbances forwarded evidence from their investigation to prosecutors for potential disorderly conduct charges.
But Lawrence city prosecutor Jerry Little said there was insufficient evidence to bring charges, according to the Kansas City Star.
Members of the football and basketball teams got into a fight on Sept. 22 and were involved in a second altercation the next day, in an apparent continuation of hostilities.
Men's basketball player Tyshawn Taylor injured his thumb in the first fight and later said on his Facebook page that he was hurt while throwing a punch. He later apologized for his role in the incident, saying it embarrassed both teams and the school.
Kansas athletic director Lew Perkins met with members of both teams after the second incident to express his displeasure with the incidents, saying it was "as mad as I've been in a long time."
Some of the tension between the teams stemmed from social network postings, including inflammatory and vulgar passages from Taylor that were apparently lyrics from a rap song.
Information from The Associated Press was used in this report.