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HOLDEN, Mo. — A Holden High School student is in custody after allegedly making a threat involving the school on social media, according to the Johnson County Sheriff’s Department.

The school was placed on lockdown Thursday afternoon as a precaution and the student was arrested off school property.

The  Sheriff’s Department said there was never a weapon on school property during the incident.

The Johnson County Sheriff’s Department, the Holden Police Department and the Missouri Highway Patrol all assisted in the investigation.