XI'AN, July 20 (Xinhua) -- More than 700 professional rescuers and over 1,500 local people are searching for 31 people who are unaccounted for after their vehicles plunged into a flooding river due to a highway bridge collapse amid torrential rains in northwest China's Shaanxi Province.
In addition, 12 people were found dead, and one person was rescued, according to a press conference held in Zhashui County, in
