The number of passengers and crew is not clear . It was not immediately known how many passengers were inside the carriages , which a firefighter said were swept 200 meters downriver . This caused the bridge piers to collapse , forcing the train from its track . The train was diverted from Sichuan to Yunnan Province .
The number of passengers and crew is not clear . This caused the bridge piers to collapse , forcing the train from its track . The train was diverted from Sichuan to Yunnan Province .