IOWA CITY, Iowa (AP) — University of Iowa officials say they’ve temporarily suspended nine fraternities for incidents with alcohol. The chapters suspended Wednesday pending further investigation are accused of violating a university moratorium on alcohol at fraternity and sorority parties. The nine are: Pi Kappa Alpha, Beta Theta Pi, Pi Kappi Phi, Acacia, Sigma Pi, Phi Delta Theta, Sigma Phi Epsilon, Sigma Alpha Epsilon and Delta Chi.

University vice president Melissa Shivers says “the blatant and systemic failure to curb holding dangerous open events with alcohol, including tailgates, will stop.” At a news conference Wednesday, Shivers didn’t describe any specific events or incidents that led to the suspensions.

The suspensions mean the chapters cannot participate in some organization-sponsored meetings, programs, social events, intramural sports or homecoming activities.