Fire swept through a high-rise apartment building in west London early Wednesday, killing an unknown number of people with around 50 people being taken to hospital.
The "stay put" policy has been a cornerstone of fire safety advice for housing blocks like Grenfell Tower since the 1950s.
Others described harrowing scenes as the fire went from "zero to 100" after it erupted at around 1.16am.
- Residents say they were told to stay in their apartments.
It is unclear whether some of the flaws that might have led to the Grenfell Tower blaze are commonplace in other highrise buildings across Britain, and how frequently security standards are being checked by authorities.
"Many of them have also received ad hoc inspections from the fire brigade over previous years".
Earlier she had said she has "never seen anything like it in my life". "As I was going down the stairs, there were firefighters, truly wonderful firefighters that were actually going upstairs, to the fire, trying to get as many people out the building as possible", he told the BBC.
"We believe that it is the responsibility of the fire industry, rather than the government, to market fire sprinkler systems effectively and to encourage their wider installation", former housing minister Brandon Lewis said in response. Assistant Fire Commissioner Dan Daly said it was a large and very serious incident.
Paul Woodrow, head of operations for the London Ambulance Service, said 20 of the 74 injured were in critical condition.
A residents association for the west London tower that was caught up in a fatal blaze Tuesday night warned of a risk of a catastrophic fire as far back as 2013, according to numerous media reports.
Police are still unable to confirm how many people are unaccounted for, since the building is still on fire, however there are real fears that nobody on the top three residential floors may have survived. When no one came to help, she made a decision to escape on her own, the woman said.
"I live near. You could see everything". "(When I called) all she said is, 'It's hot, it's hot, it's hot", she told CNN.
"I sat there watching my house burn down and watching people cry for help who couldn't come down", she said.
"They literally just jumped".
Clarita Ghavimi, 66, said she escaped with a tea towel over her mouth and was helped down by two men. "We saw the flames enter his flat and (overcome) him".
She said: "People were starting to appear at the windows, frantically banging and screaming". It added the cause of the massive fire is not known at this stag. Soon he saw the smoke and chaos. I didn't find it. Sajad Jamalvatan, a 22-year-old biomedical engineering student, said that "there are plenty of alarms in the building, but no alarm went off". "And it was just spreading like wildfire". While the borough is one of the most affluent in London, North Kensington is a particularly deprived district.
The cladding work was carried out by Harley Facades in a contract valued at 2.6 million pounds, according to its website.
He said: "Harriet Harman, who is the MP for Camberwell and Peckham, raised all these issues after that fire and. demanded that sprinklers should be fitted to all of these buildings".