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.

China is preventing a Chinese American banker for Wells Fargo and, separately, an employee of the U.S. Patent and Trademark Office from leaving the country.

China has declined to comment on the alleged exit ban, saying only that it handles all cases according to the law.

The exit ban on an employee of the U.S. Patent and Trademark Office comes after Beijing confirmed imposing similar restrictions on a Wells Fargo banker.

China has stopped an American citizen who works for the US Commerce Department from leaving the nation for several months, according to media reports — an episode that coincides with Beijing and Washington trying to arrange a leaders’ summit so they can address their differences on trade.

BEIJING (Reuters) -Storms drenched southern parts of the Chinese mainland on Monday, triggering warnings of flash floods and landslides, a day after Typhoon Wipha pounded Hong Kong. Heavy rain lashed the cities of Yangjiang,

The typhoon unleashed heavy rain and gusts over Hong Kong before making landfall in China’s Guangdong province and losing strength. It threatens Vietnam next.

Typhoon Wipha slammed ashore along the southern Chinese coast Sunday evening, after drenching Hong Kong and Macau with heavy rain and whipping wind, the Guangdong meteorological service said.