London fire: Video shows firefighters' reaction when they saw Grenfell Tower inferno
Video shot by a member of London's fire crew captures their reaction as the scale of the Grenfell Tower fire unfolded in front of them.
The firefighters could barely contain their shock as they drove towards the job awaiting them in the distance.
The footage was obtained by BBC's Panorama programme.
As the burning building came into view, one puzzled firefighter asked: "That's not a real building with people in it?"
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Another crew member said: "How the f... is that even possible?"
Meanwhile, another staggered firefighter added: "That's a real block? Oh s... Mate, this is a towering inferno."
UK police said 79 people are now assumed to have died in the fire.
If the death toll is confirmed, it would make the Grenfell Tower blaze the deadliest in London since World War II.