Tens of thousands of migrant workers are leaving the southern Chinese city of Guangzhou after losing their jobs, railway officials say.
The increase to 130,000 passengers leaving the city's main station daily is being blamed on the credit crunch. Guangzhou is one of China's largest manufacturing hubs, but many companies who export products have collapsed.
Chinese officials are worried that a sudden increase in unemployment could lead to social unrest.
The most badly hit export companies are toy, shoe, and furniture manufacturers.
There are already reports of demonstrations and social unrest in the provinces of Zhejiang and Guangdong.