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There was an accident in Henan Province, China, in which more than 200 vehicles collided one after another.

At the time of the accident, there was thick fog and it was identified because of the phenomenon of 'black ice', in which thin ice freezes on the road in winter. 



Correspondent Kim Ji-sung from Beijing.



<Reporter> The



cars are badly broken and tangled up.



Some vehicles climb onto the roofs of other vehicles, while trucks crash into stopped vehicles without slowing down.



The crashing sound of the vehicles following is constantly heard, and a sense of urgency is felt from the driver's seat of a vehicle that belatedly discovered the scene of an accident.



[Get off and go to that gap.

honey, listen to me

quickly.

Go there.]



Yesterday (28th) at 7:40 in the morning, about 200 vehicles collided in a chain reaction on the Huanghe Bridge in Zhengzhou City, the capital of China's Henan Province.



So far, one person has been killed and more than 10 injured, but the number of casualties could rise.



[Accident scene driver: I was so surprised.

Look, I can't pass through the gap between the vehicles.]



At the time of the accident, the visibility was only around 20m due to the thick fog, and it was found that the black ice phenomenon occurred because the fog froze on the road surface in cold weather.



[Accident site driver: The fog was thick in the morning, so the visibility was around 20m, and the road surface of the Hwangheo Bridge was also icy.]



Black ice is a mixture of melted snow, rain, fog, etc., mixed with road oil, dust, etc., to form a thin layer of ice on the road.



Black ice is difficult to distinguish with the naked eye as the black asphalt color of the road is reflected through it.



(Video coverage: Choi Deok-hyun, video editing: Lee Seung-yeol, CG: Park Cheon-woong, video source: Weibo)