The San Marcos Unified School District (SMUSD) said that there will be an increased law enforcement presence at San Marcos High School Tuesday as authorities investigate a possible shooting threat.
The district said Monday that the threat was based on social media rumors and was found to be unsubstantiated.
Deputies confirmed the rumors were circulating via Snapchat on Monday. They found images concerning a previous school shooting in South Carolina.
"While these rumors are unsubstantiated at this point we are taking them seriously," a statement Superintendent Melissa Hunt, read in part.
Hunt said that there would be an increased law enforcement presence at the campus and in the community.
"The district is in constant communication with law enforcement and will be sharing information as we receive it," Hunt said. "Your students will be safe at school."
Hunt said the district was alerted to the threat rumors by members of the community.