Arcadia High School Locked Down After "Unspecified Threat"

Arcadia High School was locked down Tuesday after the school received what was described as an "unspecified threat."

At about noon, students were kept inside the school as officers responded to the campus. The school remained locked down at about 2 p.m., but a school official said students would soon be dismissed.

Details regarding the threat were not immediately available. 

School district officials sent parents a message informing them of the lockdown.

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