Footage has emerged of thousands of passengers stranded at southwest China's airport because of heavy fog.<br /><br />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.<br /><br />According to reports, 44 flights were cancelled, 185 flights were delayed and 15,000 people were stranded.
