Authorities continue to investigate the cause of a fatal house fire near DeMotte overnight. Jasper County Coroner Andy Boersma told the Region News Team this morning one person was pronounced dead at the scene from smoke inhalation. That person's name has not yet been released pending notification of family. The fire occurred west of State Road 10 on County Road 11-hundred North, southwest of DeMotte. Multiple departments responded, including Keener Township, Wheatfield and Lincoln Township.