Meanwhile, Metropolitan Police commander Stuart Cundy responded to speculation that the number of dead could exceed 100, saying: "From a personal perspective, I really hope it isn't".
"My commitment to families is that as soon as we can, we will locate and recover their loved ones". He came to the United Kingdom because he had ambitions and aims for his life and for his family.
Britain's Prime Minister, Theresa May, speaks to police officers as she visits the scene of a tower block which was destroyed in a fire disaster, in north Kensington, West London, Britain June 15, 2017.
A sign at Ladbroke Grove station said "owing to the safety of the Tower" the lines had been partly suspended. "This should not be happening in the United Kingdom".
He said police would consider criminal prosecutions if there is evidence of wrongdoing and that the police investigation would include scrutiny of the renovation project at the tower, which experts believe may have left the building more vulnerable to a catastrophic blaze.
"United in our sadness, we are equally determined, without fear or favour, to support all those rebuilding lives so horribly affected by injury and loss", she said.
Firefighters using drones and sniffer dogs continued to search the burned-out housing block, that looms over the low-income community in west London on Friday.
Protesters demanding justice after the deadly Grenfell Tower inferno have attempted to storm the upper office floors of Kensington Town Hall.
Dozens of demonstrators surged towards the entrance and there were scuffles outside as organisers appealed for calm.
Prime Minister Theresa May had to virtually flee the church she visited in order to meet survivors of the Grenfell Tower fire, which has killed 30 people and injured scores of others.
Around 800 people gathered outside Prime Minister Theresa May's residence at Downing Street to protest against the United Kingdom government's handling of the disaster, said Joey Ayoub, a journalist and activist who joined others at Number 10.
The first secretary of State in her Cabinet, the equivalent of deputy PM, Damien Green came to her defence.
"We're all desperately sad, we're all angry, but of course none of us as angry as those who were directly affected".
"What I'm now absolutely focused on is ensuring that we get that support on the ground".
"In recent months, the country has witnessed a succession of awful tragedies".
Hundreds of people who escaped the flames have lost their homes and all of their belongings, but Catholic parishes in the surrounding area have quickly begun receiving donations of food, clothes and water to be distributed. "We need to know what happened", May added.
London Police said an investigation had been launched to determine whether the blaze involved any crimes and May announced a public inquiry, a type of probe that's used to investigate issues of major public concern.
The government has promised a full public inquiry, but that has done little to a sense of frustration and anger among residents and neighbours who demand answers for how the blaze spread so quickly and trapped so numerous tower's roughly 600 residents.