Rescuers search for the trapped workers after a collapse accident happened in a hotel under construction in Zixing City, Central China's Hunan Province, March 27, 2013. Two men remained buried in the rubble of a collapsed wall of the hotel. The accident occurred Wednesday morning, when the wall of a dining hall in the hotel collapsed, burying six construction workers. Four workers have been rescued and sent to the hospital, including one worker with serious injuries. (Xinhua/He Maofeng)

Photo taken on March 27, 2013 shows the accident site after a collapse happened in a hotel under construction in Zixing City, Central China's Hunan Province. Two men remained buried in the rubble of a collapsed wall of the hotel. The accident occurred Wednesday morning, when the wall of a dining hall in the hotel collapsed, burying six construction workers. Four workers have been rescued and sent to the hospital, including one worker with serious injuries. (Xinhua/He Maofeng)

Photo taken on March 27, 2013 shows the accident site after a collapse happened in a hotel under construction in Zixing City, Central China's Hunan Province. Two men remained buried in the rubble of a collapsed wall of the hotel. The accident occurred Wednesday morning, when the wall of a dining hall in the hotel collapsed, burying six construction workers. Four workers have been rescued and sent to the hospital, including one worker with serious injuries. (Xinhua/He Maofeng)