Many provinces issue blue alert on fog (1/4)

Vehicles run in fog on a street in Beijing, capital of China, Jan. 11, 2013. A fog hit many parts of China on Friday. The National Meteorological Center issued a blue alert on fog early Friday morning for Beijing, Tianjin Municipality, and provinces including north China's Hebei, Shanxi and east China's Anhui, Zhejiang and central China's Henan, Hubei and southwest China's Sichuan. (Xinhua/He Canling)