More than 400 students and staff members from Navajo Elementary school in Scottsdale went back to school Thursday after a fire closed the campus the day before.

However, they will not be attending class on campus as usual.  Instead, the Scottsdale Unified School District has directed students and faculty to report to Oak Learning Academy on Oak and Miller Roads near Coronado High School.

Regular classes will start and ended 15 minutes later while off site.

The pre-school programs did not return to campus on Thursday, but will begin at a new location on Friday.

The fire began early Tuesday morning in a utility closet at the center of the Navajo Elementary school classroom building and caused extensive damage.

The district said it will continue to divert students and staff to the Oak campus until an investigation is completed and safety inspectors clear the site after repairs.

Investigators have not yet released a cause of the fire.