Cities hit hard by smog
Major urban areas face reduced visibility, increased accidents over the weekend, Wu Wencong reports in Tianjin and Beijing.
China's most developed regions were attacked by smog over the weekend.
A total of 104 cities in 20 provinces in and near China's two largest industrial clusters - the Beijing-Tianjin-Hebei region and the Yangtze River Delta region - fell victim to heavy smog that reduced visibility to less than 10 meters in some places, according to the Environmental Protection Ministry.
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