"People with photos of their relatives, mostly workers of the apparel factories, are asking the officials there for help. Whenever an ambulance is arriving at the spot, everyone is rushing towards (it) hoping to find at least the body of their near and dear ones," Hussein said.
In all, more than 2,400 people had been rescued, police said.
But it may take some time until the full extent of the destruction will be known.
The collapse occurred Wednesday morning, a day after cracks appeared in the structure. It has stirred outrage in Bangladesh over lax safety standards in the country's key industry.
The cracks led the bank to order its employees not to report for work Wednesday, and the shops in the mall were closed because of a strike. But garment factory workers were told to report to work despite their concerns that the building's structure was not sound
The Bangladesh Garment Manufacturers and Exporters Association announced Friday that all garment factories would be shut over the weekend "for treatment of victims of the Savar building collapse and completion of the rescue operation successfully."