An amended lawsuit against the University of Arizona claims Wildcats football players gang-raped students and staff. The suit alleges school officials were told of assaults but did little in response.

As originally reported in the Arizona Daily Star, the lawsuit says there was an established culture of sexual harassment and sexual violence within the school’s football program. Few details are included about the alleged rapes, and no alleged victims or perpetrators are named.

The amendment is part of a federal lawsuit filed last year claiming university officials knew that former running back Orlando Bradford was abusive to women but failed to do anything to stop his behavior.

Bradford was arrested in 2016 on kidnapping and aggravated assault changes, after hitting and choking two ex-girlfriends. He’s been sentenced to five years in prison.