IOWA CITY, Iowa (AP) — The University of Iowa says it is investigating whether more than 30 students cheated in online classes by having others take exams for them. The school said Friday that it is reviewing each case of possible academic misconduct and will take disciplinary action against any students who are guilty. The issue came to light after potential irregularities were identified by ProctorU, a company the university uses to provide identity verification for online courses.

ProctorU said that discrepancies in identification were provided by test-takers in one or more exams and in some cases, in multiple courses. The school says sanctions could include expulsion or suspension.