A bomb threat at Delavan Junior-Senior high school prompted school officials to evacuate hundreds of students after ten Thursday morning.
The principal says they decided to evacuate the more than 500 students after discovering a note scratched into the wall of a ladies restroom.
Officials say it was unclear when the message was left.
"We were not sure so we aired on the safe side and went ahead and activated our crisis management plan based on it potentially being new and fresh today.Our staff was amazing in terms of working with the kids and our kids really stepped up and did a nice job today and everyone got home safely which is our goal," said Principal Matt Gordon,
Students in grades K-12 were bussed to a nearby armory where parents picked them up earlier Thursday afternoon.
Following a search of the school which took several hours, police did not locate a bomb. The circumstances surrounding the threat are still under investigation.
The superintendent says school will resume as normal on Friday.