Heavy machines work at the rescue site of the Wei Guan building toppled by a strong quake in Tainan, southeast China's Taiwan, Feb. 10, 2016. The 6.7-magnitude earthquake, which struck southern Taiwan early Saturday, has killed at least 39 people in the collapse of the Wei Guan building, a 16-storey residential complex. (Xinhua/Zhang Guojun)

Heavy machines work at the rescue site of the Wei Guan building toppled by a strong quake in Tainan, southeast China's Taiwan, Feb. 10, 2016. The 6.7-magnitude earthquake, which struck southern Taiwan early Saturday, has killed at least 39 people in the collapse of the Wei Guan building, a 16-storey residential complex. (Xinhua/Zhang Guojun)