Rescue teams still searching for victims in collapsed building

Rescue teams are still searching for the bodies of four construction workers believed to be trapped under the rubble of a Prague apartment building which collapsed during reconstruction work on Friday. All four were working on the third floor of the building when the ceiling caved in, crashing through the one under it. The building was otherwise empty. So far, the only evidence of those trapped within are two construction helmets fire fighters uncovered in one area. Rescuers are operating under difficult conditions, carefully digging their way through the rubble with the help of sniffer dogs. The rescue operation had to be discontinued for several hours during the night for fear that other parts of the building were in danger of collapsing. Props were put in to make the site safer. It is not yet clear what caused the tragedy.