In the glamorous Gangnam area of Seoul, South Korea, hundreds of shoppers browsed through luxury goods or stopped to grab a couple of things on their way home from work. Then, with a loud bang, the store literally collapsed around them.

Drawing on contemporary news reports and accounts from survivors, witnesses and investigators, I'll tell the full story of the Sampoong Department Store collapse.

Visit www.greatdisasters.co.uk for the full transcript and more.

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