Heavy fog covers the buildings in Wuchang district of Wuhan, capital of central China's Hubei Province, on January 31, 2009. Foggy weather will continue in most of east and central China for three days and is likely to affect the travel rush after the Spring Festival, said the National Meteorological Center (NMC) on Friday. [Xinhua]

Heavy fog covers the flyover in Jinan, capital of east China's Shandong Province, on January 31, 2009. [Xinhua]