This follows rumors about a shooting threat. The school district's Facebook Page says there was never a threat.
Rumors stem from grafitti found at Union County High School that had inappropriate comments. A female student admitted to writing it.
As a precaution, extra sheriff's deputies will be on hand, and all doors but the main entrance will be locked. A police dog will also sweep the building before school starts.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.