Following an all-clear by law enforcement officials following a bomb threat, Aiken High School administrators are returning to class those students who remain on campus, said Aiken Public Safety Sgt. Jake Mahoney.

Students were evacuated and escorted to the football stadium, and many of them left school as parents picked them up at the school's football stadium.

Public Safety was notified by school administrators at approximately 8:30 a.m. after a bomb threat was found on a bathroom wall.

"It was a handwritten message on a bathroom stall wall," Mahoney said. "The school administration notified Public Safety … We assisted them with the evacuation. We called explosive detection units from Richmond County, Lexington County and the State Law Enforcement Division.”

Those units cleared the commons areas and cleared the classroom areas, Mahoney said. He and Principal Garen Cofer said that the measures taken for the evacuation require an overabundance of caution.

The search for that person or persons responsible for the incident is already underway, Mahoney said.