Firefighters wearing chemical protective clothing work in the core area of explosion site in Tianjin, north China, Aug. 15, 2015. Death toll rose to 85 as of Friday night, including 21 firemen, from the massive warehouse explosions hitting north China's Tianjin City Wednesday night, the rescue headquarters said Saturday. Meanwhile, 721 others were hospitalized, including 25 critically wounded and 33 in serious condition. (Xinhua/Jin Liwang)

Firefighters wearing chemical protective clothing work at the site of explosion in Tianjin, north China, Aug. 15, 2015. Death toll rose to 85 as of Friday night, including 21 firemen, from the massive warehouse explosions hitting north China's Tianjin City Wednesday night, the rescue headquarters said Saturday. Meanwhile, 721 others were hospitalized, including 25 critically wounded and 33 in serious condition. (Xinhua/Jin Liwang)

Firefighters wearing chemical protective clothing work at the site of explosion in Tianjin, north China, Aug. 15, 2015. Death toll rose to 85 as of Friday night, including 21 firemen, from the massive warehouse explosions hitting north China's Tianjin City Wednesday night, the rescue headquarters said Saturday. Meanwhile, 721 others were hospitalized, including 25 critically wounded and 33 in serious condition. (Xinhua/Jin Liwang)

A firefighter wearing chemical protective clothing is sterilized at the site of explosion in Tianjin, north China, Aug. 15, 2015. Death toll rose to 85 as of Friday night, including 21 firemen, from the massive warehouse explosions hitting north China's Tianjin City Wednesday night, the rescue headquarters said Saturday. Meanwhile, 721 others were hospitalized, including 25 critically wounded and 33 in serious condition. (Xinhua/Jin Liwang)

A firefighter wearing chemical protective clothing is sterilized at the site of explosion in Tianjin, north China, Aug. 15, 2015. Death toll rose to 85 as of Friday night, including 21 firemen, from the massive warehouse explosions hitting north China's Tianjin City Wednesday night, the rescue headquarters said Saturday. Meanwhile, 721 others were hospitalized, including 25 critically wounded and 33 in serious condition. (Xinhua/Jin Liwang)