A number of people were killed, at least 50 injured and many others missing on Wednesday as a fire ripped through a high-rise apartment building in west London where residents had long warned of the potential risk of a catastrophic blaze.
More than 200 firefighters in 40 fire engines are still battling the blaze which keeps flaring up again.
Black smoke billowed high into the air for hours after the blaze broke out.
London's Metropolitan Police say six people have died in the devastating fire that engulfed a west London apartment block.
Some people were trapped in the fire, with residents desperately shouting for help from windows on upper floors as the fire spread, some British media reported.
Nassima Boutrig, who lives across from the building, said she was awakened by sirens and smoke so thick that it filled her home as well.
Police commander Stuart Cundy says he can "confirm six fatalities at this time but this figure is likely to rise during what will be a complex recovery operation over a number of days".
London's mayor Khan said questions needed to be answered over the safety of tower blocks after some residents said they had been advised they should stay in their flats in the event of a fire.
Mr Bercow said MPs offered their "warmest and most effusive thanks" to the "magnificent" emergency services who responded to the huge fire at the west London tower block.
"The cause of the fire is not known at this stage", said a statement from the London Fire Commissioner.
Relevant to your professional network? People who live nearby were evacuated, some carrying pets in their arms as they left.
"She was about to throw her baby and if somebody could catch her baby", the eye-witness explained.
They said at least two people were being treated at the scene for smoke inhalation.
He said he saw people jumping from the building. 90% of residents singed an independent petition asking for there to be an investigation into the organisation that runs this building because they were so incompetent.
"Fire is from second to top floor of 27 storey building", the fire service said on Twitter.
"This is an unprecedented incident", Cotton said.
At St. Clement's Church, where evacuees from neighboring buildings gathered, Hadra Hassad was trying to find one of her closest friends, who lived on the 21st floor.
The incident also had its impact on politics - no announcement was to be made about the ongoing coalition talks between the Democratic Unionist Party and the minority Theresa May government in view of the fire, DUP and Conservative Party sources said.
Muna Ali, 45, said: "The flames, I have never seen anything like it, it just reminded me of 9/11".
Regular readers of this blog will know that we have posted numerous warnings in recent years about the very poor fire safety standards at Grenfell Tower and elsewhere in RBKC. When she got downstairs there were only four of them with her.
Firefighters have been working through the night to rescue residents and put out the fire.
A boxing gym and a nursery are housed in the tower, according to a news release past year from the Royal Borough of Kensington and Chelsea.