The death toll has risen to 11 as the rescuers are still in search of people who were inside the building which collapsed few days ago in Miami.

Over 150 people are reported to be missing as the building collapsed when many people were inside it.

Questions mounted about how a residential building in the Miami area could have collapsed so quickly and violently last week, as the death toll rose to 11 with 150 still unaccounted for, and desperate families feared the worst.

Experts are looking at possible pre-existing critical flaws in the structure of the apartment tower in Surfside, near Miami Beach, which pancaked into a pile of smoking rubble in the early hours of Thursday.

Rescue teams from Florida and abroad continued to scour the debris for signs of life, in torrid heat and high humidity.

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