Firefighters are searching a 24 storey tower block apartment in west London while also tackling the blaze that engulfed the building killing at least six residents.
A fire broke out on the second floor in the early hours of the morning before spreading rapidly to most of the building.
Over sixty people have been treated in hospital following the incident.
After touring the scene, London's Mayor Sadiq Khan warned authorities believe the death toll will rise.
IN: "We do know…
OUT: …up."
DUR: 11
CLIP: http://www.fsnradionews.com/feeds/0614fire-Mayor1.mp3
There is speculation about what might have started the fire or allowed it to take hold so quickly.
After touring the scene, London's Mayor Sadiq Khan said he would get to the bottom of these issues.
IN: "The focus…
OUT: …lessons are learnt."
DUR: 26
CLIP: http://www.fsnradionews.com/feeds/0614fire-Mayor2a.mp3
London's Fire Service Commissioner Dany Cotton said this had been the worst fire she had ever seen in her career.
IN: "The fire crews…
OUT: …near future."
DUR: 36
CLIP: http://www.fsnradionews.com/feeds/0614fire-cotton4.mp3