As a precaution, law enforcement will remain onsite throughout the day.
School officials say police investigated the posting and determined it was referencing a school out of state - not Livonia Stevenson, located along 6 Mile Road near Farmington Road.
For example, the school district is getting ready to launch a new text line for tips on any concern that students, parents or community residents want to report, Stockman said.
"It seems the widely publicized upcoming national student walkout in protest of school violence was misconstrued and believed to be associated with a potential threat against the high school", Todd wrote.
Several of those schools had extra security at the campuses Thursday morning.
A spokesperson for the Savannah-Chatham County Public School System says they looked into the threat in the interest of student safety.More news: Trudeau tours India amid quips PM being given 'cold shoulder'
However, police say the threat does not appear to be credible.
"It depends on the threat, is this person easily identifiable?" Local Inland Empire Schools including some in Fontana and Hesperia investigated the incident.
According to Chief Deputy Rocky Davis with the Emanuel County Sheriff's Office, the threat had been narrowed down to a source most likely out of Ohio.
"Take your gun to school and shoot it up".
An investigation is ongoing, and police noted they are working with law enforcement across the country who have received the same viral Facebook post.
According to Anderson, the Federal Bureau of Investigation is working diligently with agencies across the region to determine the origin of the "SHS" threat, find the person responsible, and hold them accountable.