London fire tragedy : Toll likely to rise as unknown numbers of bodies lie inside Grenfell Tower

At least 12 people have died after the huge fire destroyed Grenfell Tower in north Kensington, where flames could still be seen burning more than a day after the  disaster.

There are still "unknown numbers" of bodies in Grenfell Tower following the devastating inferno, The Telegraph said quoting  London Fire Commissioner Dany Cotton.

The commissioner told Sky News: "Tragically now we are not expecting to find anyone else alive. The severity and the heat of the fire would mean it is an absolute miracle for anyone to be left alive."

She said there are still "unknown numbers" of people in the building.

According to BBC,  fire crews, who rescued 65 adults and children, are still working to dampen the fire that ripped through Grenfell Tower in north Kensington.

PM Theresa May promised a full inquiry, as questions were being asked about the speed at which the fire spread.

Thirty-four people remain in hospital - 18 of whom are in a critical condition.

Speaking in Downing Street,  May said: "When it's possible to identify the cause of this fire, then of course there will be proper investigation and if there are any lessons to be learnt they will be, and action will be taken."

A wall of condolence was put up near the scene with photographs showing dozens of messages left for loved ones.

Grenfell Tower, which built in 1974, was recently refurbished at a cost of £8.6 million, with work completed in May last year.

Kensington and Chelsea Council admitted it had received complaints over the works, after a residents' action group said its warnings about safety had fallen on "deaf ears".

Concerns had also been raised about exposed gas pipes weeks before the devastating blaze,BBC said.