Two 13-year-old boys were arrested after a 12-year-old girl told police Monday she was held against her will on the grounds of the Kamehameha Schools Kapalama campus from early Friday to early Monday and repeatedly sexually assaulted.

"Kamehameha Schools and the Honolulu Police Department are investigating a situation involving several Kamehameha Middle School students that was reported to school administrators early (Monday)," school officials said in a statement yesterday. "The police investigation involves a criminal complaint, and Kamehameha is cooperating fully with HPD in its inquiry."

The two boys were arrested on suspicion of six counts of first-degree sexual assault, five counts of third-degree sexual assault, three counts of kidnapping and one count of burglary.

The boys are being held at the Alder Street detention facility pending a meeting between prosecutors and police.

Jim Fulton, spokesman for the city prosecutor's office, said he is barred by law from saying anything about the case because it involves juveniles.

The news shocked the Kamehameha Schools community.

"We need to establish the facts about what actually happened," said Jan Dill, an alumnus and a board member for the Kamehameha support group Na Pua a Ke Ali'i Pauahi. "I think we need to encourage all parties that there needs to be a timely addressing of the issues because it doesn't help to let speculation reign."

On Monday night, school president Michael Chun sent recorded messages to parents' telephones addressing speculation about the incident which was "rampant on Facebook pages," said Ann Botticelli, vice president for community relations and communications for the school.

"Mike's message to parents was provided to acknowledge that very serious allegations were being investigated by police and internally," Botticelli wrote in an e-mail.

"The protection of our students is our primary concern, and that includes protecting them from violations of their privacy through the casual use of social media."

One parent added that students may need help dealing with the incident.

"I just hope they counsel the seventh- and eighth-graders because they are asking a lot of questions," said the parent of a seventh-grader who asked not to be identified because the school requested parents not speak publicly about the case.

The statement from the school said: "The internal Kamehameha Schools investigation is looking into potential violations of its student Code of Conduct, with any consequences to be determined in accordance with school policy. Because this investigation deals with potential disciplinary action involving minors, details will not be discussed or released publicly by Kamehameha Schools."

When asked if the school had notified police about the incident, Botticelli said, "When such serious allegations are involved, our first concern is for the emotional stability of the child. We rely on parents to file criminal complaints on behalf of their children."

Kamehameha Schools' Kapalama campus is its largest with more than 600 acres. Some students, especially those from Neighbor Islands, live on the Kapalama campus.

Kamehameha Schools was rocked by an event in November 2003 that included the production of a video that showed students at the school engaging in sexual activities.

School officials said that disciplinary action following that incident "included expulsion of some students."