CHICAGO (AP) – Northern Illinois University placed its police chief on administrative leave Saturday and said it will fire another officer over the department’s handling of a sexual assault case, which has prompted allegations of misconduct.

The university announced that police chief Donald Grady was placed on leave pending the finalization of charges and disciplinary actions under the terms of his employment as well as university policies. NIU also said police Lt. Kartik Ramakrishnan, who investigated the sexual assault case, was notified that the university intends to fire him.

Former officer Andrew Rifkin is charged with felony sexual assault in the case. He has pleaded not guilty.