Two people are seriously ill after being rescued from a flat fire which led to a boy tragically losing his life.
The five-year-old child died in hospital shortly before 8am this morning following the blaze in Greenwich, south east London.
A 34-year-old woman and a second boy, aged 14, remain in hospital in a serious condition.
The cause of the fire is not yet known, with police saying they are keeping an open mind.
The three people were taken from the inferno by firefighters wearing special breathing equipment who had to climb up to the top floor of a block of maisonettes to save them.
Six fire engines and around 40 firefighters were called to the blaze at 5.44am on Saturday, said the London Fire Brigade.
Crime scene examiners and firefighters are still working to establish how the fire started.
Detective Chief Inspector Laurence Smith, who is leading the investigation, said: “A child has lost his life in extremely tragic circumstances.
“At this stage, I am keeping an open mind as to the cause of the fire.
“I urge anyone with information to come forward.”
A Scotland Yard spokesman said: “Three people, a 34-year-old woman and two children, sustained injuries and were taken to south London hospitals.
“Despite the best efforts of the emergency services and hospital staff, one of the children sadly died shortly before 8am.
“The 34-year-old woman and the second child remain in a serious condition.”