FARMINGTON (AP) — A gun magazine filled with .40-caliber bullets has been found in a suburban Detroit high school, forcing officials to place the building on lockdown.

School officials say the magazine was discovered Friday in the auditorium at Farmington High School, northwest of Detroit.

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The auditorium was searched and the lockdown was later lifted.

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District officials told parents in an email that they didn’t believe students and staff were in danger.

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