A bomb threat prompted a lockdown at Simi Valley High School on Wednesday morning. The school received the threat shortly after 8:30 a.m., and police arrived on the scene promptly. The campus was placed on lockdown, and officers with K-9 units conducted a thorough search. Students and faculty were seen seated on the basketball courts a short distance away, while several streets around the high school were closed. The public was advised to avoid the area as the situation continued to develop.