Three people were rescued and taken to hospital, Dacic said on Friday. Two were women who had been trapped in the rubble, managed to maintain vocal contact with rescuers.
Emergency workers arrived at the scene within minutes, with the rescue operation involving over 80 responders from multiple cities, Xinhua news agency reported.
The Serbian government had initially reported eight deaths in the incident on Friday afternoon. However, in the meantime rescuers found five more bodies.
Dacic said an investigation will follow the rescue operation, to determine who was responsible for the incident.