Heavy fog causes long time traffic jam in C China's city(1/3)

Vehicles are stranded at a fog-enveloped crossroad in Zhengzhou, capital of central China's Henan Province, Jan. 18, 2012. A heavy fog hit Zhengzhou on Wednesday, causing long time traffic jam in the city. Besides, a huge number of vehicles coming into Zhengzhou before the Spring Festival was also a cause of the traffic jam. (Xinhua/Wang)