UPDATE: 11:30 a.m.
School Superintendent Terry Arbogast tells WSLS it appears most of the damage was in the main office. A staff member found the damage early this morning. Teachers and staff were called in at 10 a.m. to help with the clean up.
UPDATE: 11:15 a.m.
While he would not elaborate on the vandalism, Jason Mills, principal at Giles High School says they are in the process of making repairs and cleaning up the damage.
He said they do know it was a forced entry, and school leaders are working with investigators. Mills said the school does have surveillance cameras.
Giles High School will be closed today. All other schools in the system are open. Superintendent Terry Arbogast tells WSLS the high school was vandalized overnight. No other details were given.
WSLS reporter, Erin Barnett talked with Giles County Sheriff Morgan Millirons, who says investigators are still processing the scene.