How did London tower block fire spread so fast and kill so many?

London's high-rise blaze was the worst such tragedy for many years. What can we glean so far about why it spiralled into a disaster, asks engineer Feng Fu

Grenfell Tower fire: At least 12 dead after inferno engulfs London tower block with death toll set to rise

London's Grenfell Tower disaster: how did the fire spread

London fire: Six killed as Grenfell Tower engulfed - BBC News

Fire engulfs apartment block in West London

London tower fire: Blaze that killed 79 started in refrigerator

How did London tower block fire spread so fast and kill so many?

London Fire – here's how you can help those made homeless by the Grenfell Tower blaze

Fire safety official admits tests showed cladding danger 15 years before Grenfell, Grenfell Tower inquiry

London high-rise fire: Cladding may have helped spread blaze