The incident occurred on a two-way road bridge in the city of Zhengzhou at around 7:40 local time on Wednesday (23:40 on Tuesday GMT) because of extremely foggy conditions and low visibility. At least one person died, Chinese television said.
The pile-up involved more than 200 vehicles, according to preliminary estimates from rescuers at the scene. 11 fire trucks and 66 rescuers arrived immediately, media reported.