According to the district, a threat was made to "grease" TCHS at 1 p.m. on Friday.
After an investigation, authorities were able to determine the threat was made by someone that was not a student.
"This afternoon, a threat was made to TCHS for tomorrow. It was fully investigated and the person who made the threat has been identified. We take all threats seriously. The Galveston County Sheriff's Department is handling the situation. For extra precautions, we will have additional security in place tomorrow," Texas City ISD said.
Report a typo to the ABC13 staff