Colleyville Heritage High threat prompts "secure protocols" at multiple campuses, officials say

August 14, 2026 / 3:29 PM CDT / CBS Texas.

A threat at Colleyville Heritage High School led multiple campuses to enter a "secure protocol" on Friday afternoon, officials said.

Shuttles were halted and dismissal times adjusted while police assessed the situation, according to the GrapevineColleyville Independent School District.