LAWRENCE, Kan. (AP) — The University of Kansas has cited the protection of student identity and privacy for the heavy redaction of documents regarding two fraternities placed on probation for hazing.

The Lawrence Journal-World reports the fraternities were disciplined after a 2014 investigation by the school. Information in documents provided to the newspaper about Delta Tau Delta and Phi Beta Sigma was redacted, including the nature of the hazing.

University spokesman Joe Monaco says the school is only allowed to release student information without the student’s consent after removing identifiable information. The university also said that releasing the documents without redactions would constitute an unwarranted invasion of privacy under the Kansas Open Records Act.

Fraternity representatives declined to comment on what led to the discipline.