HONG KONG (Reuters) -Wells Fargo has suspended all travel to China after a banker was blocked from leaving the country, a source said, bringing the U.S. bank's operations in the world's second-largest economy into focus.

A leading multinational corporation suspended all travel to China on Thursday following allegations that one of its employees was detained

Chinese authorities have placed an exit ban on a China-born executive after she entered the country recently. The bank has suspended travel to China.