Fire officials say Tuesday's blaze, which broke out at about 12:45 p.m., injured two firefighters and caused an estimated one million dollars of damage at the school.
No students or staff members were injured.
RELATED: See photos of the fire
The cause of the fire is still being investigated.
School administrators tell Action News they hope students will be able to retrieve their belongings from the school sometime this week.
Classes are expected to resume Monday.
The Lower School, located on an adjacent campus, was not affected by the blaze.
Classes there resumed Wednesday on a normal schedule.
