Although officials believed the threat to be a prank, precautionary measures were taken and all students were moved to North Clay Middle School.
Following the threat, NHS officials immediatley contacted the Clay County Sheriff's Department.
Officers responded to the scene after the students had been evacuated from the building.
Students were allowed back into the building at 12:30 p.m.
School officials said classes will resume, but will be shortened to conclude the day.
Students will be dismissed from school at the normal time.
The Brazil Times will provide updates on this story when they become available.