Horry County Police arrested the 14-year old last Wednesday. Authorities say the threats were found on the student's Facebook page.
Police say this case is not related to last Tuesday's school shooting at Socastee High School. The 14-year-old student was charged with disturbing schools and was later released to his parents.
Horry County Schools Spokeswoman Teal Britton says the student was suspended pending today's disciplinary hearing.