Student detained for bringing live ammunition to Philadelphia school: police

PHILADELPHIA - An incident at a Philadelphia high school left several students on lock down, and one student detained by security.

A 17-year-old student set off a metal detector at South Philadelphia High School around 9:30 a.m. Thursday.

Police say a 9mm magazine with one live round was found in the teen's backpack.

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The security office detained the student as school police declared a lockdown.

The magazine was recovered by Philadelphia police, who conducted a K9 search of the school property.