Six other persons were rescued from the rubble by some galamsey operators after a seven-hour operation, as personnel of the Ghana National Fire Service and the Ghana Police Service were late in arriving at the scene of the accident.
The collapsed building was situated near an abandoned mine shaft.
The body of one of the deceased is still under the collapsed building, as equipment to remove the heavy concrete is not available.
The Tarkwa Divisional Police Commander, Mr Antwi Tabi, told the Daily Graphic that every effort was being made to remove the body from under the heavy concrete.
He said nine workers were in the uncompleted building at the time it collapsed at 3 p.m. on Sunday.
He said the weak nature of the uncompleted building was creating more problems for the rescue team because of fears that it might sink further.