An Atlanta-based banker working for Wells Fargo has been prevented from leaving China, the latest incident that threatens to amplify concerns among Western executives about the potential consequences of visiting the world’s second-biggest economy.

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

China's Foreign Ministry said on Monday that Chenyue Mao, the Wells Fargo banker who has been blocked from leaving the country, was involved in a criminal case and obliged to cooperate with the investigation.