Video: Woman arrested over fatal Derby house fire The woman was arrested at a separate address after a blaze broke out early on Friday morning in a three-bedroom, semi-detached house in Derby while the children were asleep. Fire crews were at the scene within three minutes of being called and managed to rescue all eight members of the family, but the children died of smoke inhalation. Assistant Chief Constable Steve Cotterill said: "This is a sad and tragic case.