On September 2, 2026, at approximately 8:58 a.m., Martinez Police Department received a call of messages being sent to a tip line. The messages stated the person was at Alhambra High School (AHS), armed with weapons and explosives, and made threats to harm students and officers.
AHS administration placed the school on lockdown and the Martinez Police Department immediately responded. Pleasant Hill Police Department and the Contra Costa County Sheriff’s Office also responded to assist. Preliminary investigation determined the threats were not credible. The Police Department assisted AHS administration in clearing the campus and the school day resumed.
The Police Department commends students, parents, and staff for their patience and cooperation during the incident. Alhambra High School will have counselors on site
today and tomorrow.
The Police Department is conducting a criminal investigation into the threats and has contacted the FBI. It was determined the anonymous messages came via a virtual private network originating from an overseas source. Anyone with information is encouraged to contact Detective James Murray at (925) 372-3453 or at [email protected].
No other information was released by Martinez Police.
