Along with 78 other cities, China's capital, Beijing, was again blanketed in thick winter smog on Saturday, the official Xinhua News Agency reported.

Air pollution warnings were issued across the north, northwest and east of the country, forcing residents in many cities to curb outdoor activities due to the potential health risks.

Several Chinese cities struggled with high pollution levels throughout November, which in some instances forced the cancellation of flights and the closure of major highways.