One person is in custody following a threat made on social media against the Peshtigo School District. According to the Peshtigo Police Department, a student from Peshtigo High School threatened to “shoot up the school” Sunday. That student was interviewed by police and is now being house in a juvenile facility and charges are being referred to the Marinette County Juvenile Court Service. Officials say there is no longer any threat to the school. Classes were held as usual Monday.