The Muskingum County Sheriff's Office is investigating a bomb threat made at Mid-East Career and Technology Center.
Sheriff Matt Lutz said a note was discovered in a bathroom that indicated that a bomb threat would happen at 1:15 in the afternoon.
Administrators evacuated the school and emergency responders were brought in to do a sweep of the building.
"Obviously the school was evacuated," said Lutz. "Our people got there. Nothing happened at 1:15 p.m. obviously. The school was checked and the students were back in session. So, it got them out of school a little bit. It caused a big disruption for the staff down there."
Students and faculty were allowed to return to class just after 1:30 p.m.
Lutz said no suspects have been named yet, however deputies will return to the school to gather more details about the incident.
"I'm sure we'll develop a list of suspects," added Lutz. "The thing about the schools is that usually the kids don't keep their mouth's shut about things like this and it's usually done for bragging rights and they'll probably brag to the wrong person who will them let somebody know and it will probably get back to us."
The Sheriff said bomb threats are not uncommon, however the consequences for those who made the phony threats are severe.
"Sometimes people think its a simple joke, but actually it's a charge on inducing panic, which within a school causes it to be a felony of the 2nd degree," Lutz said. "The weakest felony is an F-5, the highest felony is an F-1, so it's a pretty serious charge."
In August, two bomb threat were called in to John Glenn High School.
A 16-year-old student was arrest and charged with inducing panic and possession of a hoax device.