"At least 470 shanties were destroyed by the fire. So far nine people have died. They included four members of a family," fire brigade official says.
A 24-storey abandoned office building occupied by hundreds of squatters was engulfed in flames and collapsed in the centre of Sao Paulo.
The building, a former federal police headquarters, was engulfed in a blaze before the floors started falling on themselves like dominoes with debris flying in all directions.
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