Rescuers search debris for survivors after part of a residential building collapsed in Zunyi, Guizhou Province, yesterday. Three residents remained missing after the old nine-story building collapsed at 5:58 a.m. Sixteen were rescued, two slightly injured. The cause is under investigation. This is the second building to collapse in one month in the same city. On June 10, a seven-story building collapsed in the city at midnight. All 68 residents had a lucky escape thanks to a couple, who discovered cracks in their apartment walls and woke their neighbors up before the collapse happened. In May, a portion of a nine-story building collapsed in the provincial capital Guiyang, killing 16.Xinhua