Two floors collapsed on Tuesday morning in a building under reconstruction in Mikulandska street in the city center of Prague, with several people being buried.
Firefighters have freed three people, including one seriously injured, two in moderate conditions, but the numbers of those who may still be stuck under the ruins are not known yet.
Prague police spokesman Jan Rybansky said another four workers might be under the debris, while rescuers spoke about another two. The cause of the accident will be investigated after the rescue operation.
Firefighters built a provisional protection against another collapse. However, they say this risk still exists. The cause of the accident will be investigated after the rescue operation.
The Metrostav company, which is reconstructing the building, ruled out that any work safety regulations were violated at the construction site.
The accident happened around 10:30 a.m. on Tuesday morning. All the three injured were rescued during the first hours of the rescuer’s intervention and treated by an emergency service staff.