The University of Phoenix is closing 115 of its smaller locations, a move that will affect 13,000 students, including those enrolled in the Mililani center.

Apollo Group Inc. said Tuesday that its fiscal fourth-quarter net income tumbled 60 percent, hurt by higher costs and declining enrollment at the university. The closures will help the for-profit education company cope with the losses. Shares in the Phoenix-based company tumbled nearly 9 percent in after-hours trading.

The closings include 25 main campuses and 90 smaller satellite learning centers, among them the Mililani Learning Center.

University spokesman Alex Clark said no more students would be enrolled at the Mililani location, although all current students would be able to complete their degrees.

Leasing space nearby for classrooms could be an option if the center’s current lease runs out before every Mililani student graduates, Clark said.

But he also noted that the university’s Hawaii students in particular attend classes online at a high rate and don’t necessarily need physical classrooms.

The university’s main campus downtown and the learning center in Kapolei will not be affected by closures or cutbacks, Clark said.