The University of Arizona has suspended all activities for the Sigma Phi Epsilon fraternity chapter after a female student reported being sexually assaulted by two men at the fraternity house in August. The university stated that the fraternity poses a substantial risk to the community, and an investigation into the allegations is ongoing.

Associate Dean of Students Whitney Mohr informed the fraternity in a letter that its activities are suspended, prohibiting it from hosting, attending, participating in, or sponsoring any organizational events until the case is resolved. The university also accused Sigma Phi Epsilon members of providing alcohol to minors on August 26, the night of the alleged assault, and again on September 29.

The fraternity was already on probation, having received a conditional warning and fines in July following hazing allegations. According to search warrant records, the student reported that she was drinking on the night of August 26 but woke up to two men assaulting her. She told investigators she had trouble swallowing the next morning, indicating possible strangulation, and provided physical descriptions of the individuals.

The national organization for Sigma Phi Epsilon stated it does not tolerate sexual assault or misconduct and has suspended those involved in the incident pending the investigation. The local chapter has not responded to requests for comment. The Pima County Attorney’s Office has not yet received a referral for the case from prosecutors.

The University of Arizona Police Department is continuing its investigation. This action follows a broader crackdown on Greek-life activities at the university. Earlier in the month, the administration suspended activities for 21 fraternities due to reports of assault, hazing, and alcohol- and drug-related behavior. Five fraternities remain suspended.

Sigma Phi Epsilon members are prohibited from contacting the alleged victim or her family. The university has warned that any accusations of retribution or intimidation could lead to further investigation and harsher penalties.