Orr, MN (NNCNOW.com) -- Formal charges are pending against a woman after she allegedly assaulted two family members with a knife and started a fire in the basement of the family's home late Wednesday night. The St. Louis County Sheriff's Office is investigating the incident which took place on Willow River Road in the rural area west of the City of Orr. Family members extinguished the fire that was started and restrained the 26-year-old female until officers arrived. An ambulance and First Responders were called but no medical treatment was needed. The female was taken into custody and is being held in the St Louis County Jail in Hibbing pending formal charges. Posted by the web by Jenna Vogt