RIALTO, Calif. — Rialto High School was placed on lockdown Friday afternoon as law enforcement responded to a report of an armed person on campus, authorities said.
The lockdown was implemented as officers began an ongoing investigation into the reported incident. Law enforcement personnel responded to the school to assess the situation and determine whether there was an immediate threat to students and staff.
Authorities have not yet released additional details about the reported armed person, including whether anyone was injured or whether a suspect has been identified or taken into custody.
The incident prompted a significant law enforcement response as officials worked to secure the campus and investigate the report.
Students, staff and families were urged to follow instructions from school officials and law enforcement while the investigation remained active.
Further information is expected as authorities continue to investigate the circumstances surrounding the report.