BBC Radio 5 live

Image source, Family handout

The aunt of a missing 12-year-old girl has pleaded with people on social media to "not post any misinformation".

Sandra Ruiz asked anyone with information on the whereabouts of Jessica Urbano to call the police emergency hotline.

Jessica became separated from her family as the blaze broke out and has not been heard from since.

Messages of support and remembrance have been written on wall near the scene of the London tower fire.

Image source, PA

Political correspondent Chris Mason says there are "pretty searching" questions over the Grenfell Tower fire for the government.

"Former senior fire officers, for instance, say the government's desire to cut back on regulations, in their view, has stood in the way of refreshing the necessary rules around fire safety in tower blocks.

"There's particular questions coming the way of Gavin Barwell. He was a housing minister until just last week. Then he lost his seat, and within hours was appointed the prime minister's chief of staff.

"There's questions around whether a review the government has promised into fire safety regulations has been in any way repressed or sat on.

"The government insists it hasn't, that the work to do with those regulations is still ongoing. But you can imagine that those questions will continue now."

BBC Radio 4

Matthew Price, Chief Correspondent for Radio 4's Today programme, is at the scene in west London:

A wall of condolences has been started near the tower's blackened skeleton. There are messages in English and Arabic, and direct tributes for lost loved ones. Alongside them, messages of anger calling for justice. People say they were not listened to when they voiced concerns.

Image source, PA

The BBC met Omar, who filmed the distressing scenes at Grenfell as the fire took hold.

The footage is grainy but vivid. In a window, an adult and a child signalling to those below. Omar thinks they were on the 17th floor.

The next file on his phone shows someone on a higher floor turning their lights on and off - another signal for help.

"It was so quick," he says. "Shocking... Shocking."

Image source, PA

Commissioner Cotton said that it was not currently possible for firefighters to go into the edges of the 24-storey tower block, as it was not structurally safe.

Image source, @Fourmee

London-born singer Adele visited the site of the Grenfell Tower blaze on Wednesday evening.

The singer, who was with her husband, was seen talking to people around the area, hugging them.

The pictures were posted by @FourMee, external on Twitter, who commented "respect to both of you".

Today Programme
BBC Radio 4

Chair of the Housing Committee of the London Assembly Sian Berry has said fire risk assessment in tower blocks is "less rigorous" due to responsibility shifting from the fire brigade to the building's owner.

"It used to be the case that the fire brigade would go in, inspect, make very prescriptive requirements on the building owners, before they would get a safety certificate. Now it's not like that... it is less rigorous," she told the Today programme.

BBC Breakfast

Commissioner Cotton also said she was "completely unaware" of how many people lived in the building, and that the "fingertip" search of the block by firefighters could only be completed once it was safe to enter.

She said she had never seen a fire of this type in her entire career before.

BBC Breakfast

Commissioner Cotton also said the top floors of Grenell Tower were not currently deemed safe enough to send firefighters into, and therefore full searches have not yet been carried out.

Nine firefighters suffered minor injuries during the search, she added. But she said was more concerned about the mental health of her firefighters and ensuring they had trauma counselling if needed.

BBC Breakfast

London Fire Brigade Commissioner Dany Cotton says firefighters have had a "brief search of all floors" but there are still several floors that require a "thorough search" and that people may still be found on the upper floors of the tower block.

Chris Green is a lawyer with expertise in fire, health and safety law. He says it could take weeks to gain access to the tower block site.

"People will be clearly mindful of the need to ensure sensitivity when trying to look for the victims of this awful event.

"It's only then that analysis can be conducted about how safe it is to even get into the building, and then perhaps the process of starting to understand what happened here and how it spread in that way can begin."

Kensington Aldridge Academy, which is next to Grenfell Tower, has issued a statement.

"[We] currently cannot use our building and we do not know when we will be able to access the premises. In these circumstances it is not possible for us to open on Thursday 15th June, and we do not anticipate being able to open on a fully operational basis at Silchester Road in the immediate future."

School principal David Benson added: "This is a desperately sad time for the school. Our thoughts are with those families affected by this tragedy. We are part of this community and its pain is ours."

BBC Breakfast

Image source, Jason Hawkes

Graham Fieldhouse, a fire safety expert, says that in a purpose-built building like Grenfell Tower, the advice in the event of a fire is to "stay put".

"But that's a quantified advice," he adds. "It's stay put, unless affected by fire or smoke. Clearly, everybody in this block was affected by fire or smoke, so they should have been evacuated.

"But for too long there [has needed] to be clarification to say 'look, stay put simply means a small fire in a flat on the 10th floor does not mean that all 12, 20, 30 floors of a block of flats needs to be evacuated'."

BBC Radio 4

Sian Berry is a Green London Assembly member who chairs the London Assembly housing committee.

She says that under current rules, it is the responsibility of building owners to ensure that a fire assessment has occurred - and this "creates problems".

"It used to be the case that the fire brigade would go in and make very prescriptive requirements," she tells BBC Radio 4, but now it is "less rigorous".

Image source, Green Party

She says the London Assembly looked into the issue after a similar fatal fire at Lakanal House in 2009, and found that 20% of assessments were inadequate.

"There are genuine issues with accountability," she says.

Ms Berry says her solution to the problem is for residents to become much more involved in the management of their blocks.

"Who knows these buildings better than the people who live in them?" she asks.

"It's not just about this block, it's about residents across London. People trying to make their homes better are being regarded as troublemakers by the authorities."

Humraz Khan and his friends tried to help the people of Grenfell Tower. He filmed the events as they unfolded.

BBC Breakfast

Sir David Amess is chair of the all-party parliamentary fire safety rescue group.

He said: "We've argued time after time that sprinklers stop lives being lost. And we've waited 11 years for a review of building regulations.

"It's absolute madness that it isn't mandatory for sprinklers to be automatically fitted in all new school buildings. It's impossible to put any amount of money on someone's life.

"It's been very, very frustrating for our committee and it's taken a tragedy like this to get some attention on the whole issue of sprinklers."

BBC Radio 4

Image source, PA

The BBC’s Sangita Myska tells Radio 4's Today programme she met Hannah, a Grenfell resident who ran for her life with her partner and young daughter.

Hannah told her: "It was horrific. Panicking - so many things are going through your head... You don't know if you can even get out once you're at the bottom."

She says that when she moved to the tower block a year ago, "I signed forms, but nobody went through what to do in an emergency".

Her mother, Jackie, who rushed to the scene at 3.30am on Wednesday, tells Radio 4: "It was such a relief when I did see her. She's lost absolutely everything. She's come out here in her knickers and t-shirt... but I said to her - material things you can sort out. Lives, you can't."

BBC Radio 5 live

Although the majority of the Grenfell Tower has been searched by fire crews, there are still some hard-to-reach places.

While helicopters can create a downdraft which could fan the flames of the fire, drones can enter the building and search floor by floor.

Speaking to BBC Radio 5 Live, drones expert Elizabeth Quintana said: "The drone that [they are] using can fly up to 400ft, which is higher than the top of the building.

"These are much smaller aircraft [than helicopters], they're palm-sized so the sensors they can carry are much lighter. They only have a relatively narrow field of view... but in terms of getting detailed information these are very useful."

BBC Radio 4

Russ Timpson is a former firefighter who now runs the risk management company Horizonscan, and is secretary of the Tall Buildings Fire Safety Network.

He told BBC Radio 4 that it is still possible to build tall buildings without sprinklers, depending on what the building is used for.

"I suspect that this will be a sea-change ... when we hopefully reflect on where we have come to with our regulations."

Mr Timpson says overseas colleagues are "staggered" when they hear tall buildings are built in the UK with a single staircase.

"We do have tough fire legislation," he says, "but it is timely that we do reflect on that. I'm afraid that to some degree the money does determine how much fire safety you build into a building."