The heavy fog disrupted flights at several airports, China's Xinhua news service reported Wednesday. At Beijing's Capital International Airport, 140 flights were delayed. Flights were also postponed at central China's Henan Province, north China's Hebai Province and east China's Shandong Province.
At Xiaoshan airport in Hangzhou, the capital of the Zhejian Province, more than 4,000 people were stranded and all flights had been canceled from Nanjing, the capital of the Jiangsu Province; Hefei, the capital of the Anhui Province; and Xi'an, the capital of the Shaanxi Province, Xinhua reported Tuesday.
Authorities have blamed the fog on a lack of air movement in the region combined with an increase in air pollution.
The fog also forced officials to close highways while several accidents were reported on other roadways.
At least two people died and 22 others were injured in accidents in the northwest province of Shaanxi and east China's Anhui Province, Xinhua said.