(AP) — Fraternities and sororities at the University of California, Berkeley have taken a bold stance against sexual violence, voluntarily banning all parties following reports of two sexual assaults last week at off-campus frat functions. Interfraternity Council President Daniel Saedi called it "relatively unprecedented" for the Greek system to suspend its own parties but said Friday that fraternities and sororities agreed to pause social events to figure out how to keep them safe. Saedi and Panhellenic Council president Divya Thomas, who oversees the school's 12 sororities, announced the suspension this week in a Facebook post, saying they would "suspend all social events until we can reevaluate our risk management practices." According to the university's crime statistics, 22 rapes were reported on-campus or in student housing in 2015 and four rapes were reported off-campus. [...] typically, the university administration is the one to impose bans on fraternities or sororities for hazing, drinking, sexual misconduct or other disciplinary matters.