These are the horrifying images that show the deadly fire that claimed the lives of three children and their mother.
Police have arrested a man at the scene on suspicion of murder following the blaze in Brent, northwest London.
Firefighters arrived to Tillett Close, Stonebridge, near Wembley, at 1:22am on Saturday morning.
A 43-year-old woman, a 15-year-old girl and two boys aged eight and four, died at the scene, the Metropolitan Police confirmed.
Their next-of-kin have been informed. 'Our thoughts are with them at this difficult time,' the force added.
