Cabinet last month suspended the university's Vice Chancellor and placed two of his deputies on special leave.
The suspensions followed complaints that some students graduated when they shouldn't have.
Several investigations are underway.
Meanwhile, the chief executive of Samoa's qualifications authority, Letuimanu'asina Emma Kruse Va'ai, said interim staff are providing cover for the university's leadership.
"In the sense of continuity, there is an interim vice-chancellor now and the course and the programmes are continuing because we have the students as priority," she said.