The university held student conduct hearings against a student in response to the allegations, Shutt said. Universities use student conduct hearings to address nonacademic student misconduct that may be legal or illegal, including hazing, theft and possession or sale of drugs.
During those hearings, five other students came forward to make claims against that student in the hearings, he said.
Shutt declined to name the student or say what action the university took against the accused student at the conclusion of the hearings, citing privacy restrictions.
The hearings were concluded by Nov. 30, Shutt said.
Dickerson said Monday the department had interviewed four victims as part of the investigation. Police think the alleged assaults may have taken place in at least three jurisdictions: Tahlequah, Stillwater and on campus at OSU.
Police will continue interviewing victims in the coming days, he said.
Police suspect there may be many more victims in the case who haven't come forward, Dickerson said.
“I've been made aware that there are numerous victims,” he said.
Fraternity President Nick Jordan would not give details Friday of the alleged assaults, but said the fraternity turned over the matter to the university after becoming aware of the alleged incident.
“None of the alleged actions occurred in the house, and the individual is no longer associated with us,” Jordan said.