Footage has emerged of thousands of passengers stranded at southwest China's airport because of heavy fog.
The video, filmed at Chengdu Shuangliu International Airport in Sichuan Province on December 4, shows heavy fog causing extremely low visibility and a large number of commuters waiting in the airport terminal.
According to reports, 44 flights were cancelled, 185 flights were delayed and 15,000 people were stranded.
