MINNEAPOLIS (WCCO) – Officials in southern Minnesota say a teenager was arrested early Thursday after threats of a school shooting were posted on social media.

The St. James Police Department says a 14-year-old boy who attends St. James High School was arrested and is currently being held in the Watonwan County Jail. Formal charges are expected later Thursday.

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Police say that Facebook and instant messaging posts were reported late Wednesday night. The posts threatened a school shooting ending with the shooter turning the gun on himself.

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St. James Public Schools says classes will be held Thursday. Extra patrols will be issued in and around area schools, police say.

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The incident remains under investigation.