Rescuers searched in bitter cold Sunday for victims buried when the roof of an exhibition hall in southern Poland collapsed on a racing pigeon show, killing at least 60 people and injuring more than 141. The death toll rose steadily through the early hours of Sunday as rescuers dug through the building following its collapse at around 5:30 p.m. (1630 GMT) Saturday in the city of Katowice. "Unfortunately we have more tragic information: 60 people have died," Andrzej Fiema, an official at the crisis management center organizing rescue said on TVN24 television shortly before 7 a.m. (0600 GMT) But more than eight hours had passed since the last person was pulled alive from the twisted ruin of corrugated metal. "From experience, we are making our way toward niches or hollows, or some protected places where there could still be people alive," Wojtaski said. "As long as there is hope and there is faith, then we will search the whole time, nobody will rest." It wasn't clear how many more victims might still be under the building. Up to 500 people were in the exhibition center on Saturday when the roof fell in. People trapped in the wreckage used cell phones to call relatives or emergency services and tell them where they were.