An aerial photo taken on Aug. 14, 2015 shows a huge hole at the core area of explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)

An aerial photo taken on Aug. 14, 2015 shows the explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)  

An aerial photo taken on Aug. 14, 2015 shows the explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)

An aerial photo taken on Aug. 14, 2015 shows the explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)   

An aerial photo taken on Aug. 14, 2015 shows the explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)

An aerial photo taken on Aug. 14, 2015 shows the explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)   

An aerial photo taken on Aug. 14, 2015 shows the explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)  

An aerial photo taken on Aug. 14, 2015 shows the explosion site in Tianjin, north China. The death toll from explosions occurred on Wednesday night rises to 85 as of Saturday morning. (Xinhua)