Overview
- A 9-1-1 caller reported an armed person in a bathroom on the Mt. Carmel High School campus, prompting an immediate officer response and a lockdown.
- Officers swept every classroom and building before declaring the campus safe and allowing students and staff to resume normal school-day activities.
- Nearby Sunset Hills Elementary and Black Mountain Middle School were placed in a secure-campus status as a precaution while police worked on scene.
- The San Diego Police Department said investigators are probing the source of the 9-1-1 call and that no suspect has been identified.
- The episode highlights how false or unverified threat reports can mobilize major police resources, disrupt instruction, and trigger standard lockdown and secure-campus safety procedures.