HONG KONG (AP) — The Chinese arm of U.S. billionaire Sheldon Adelson’s gambling empire is being investigated by Macau privacy authorities over its handling of documents related to a lawsuit by its former CEO, who claims the company has links to crime bosses and encourages prostitution as part of its business strategy.

Sands China Ltd. said Wednesday it was notified by Macau’s privacy watchdog that an official investigation has been launched into the alleged transfer of “certain data” from the Asian gambling city to the U.S.