Sheldon Adelson is off the hook, at least in the eyes of a U.S. watchdog.

Nonprofit Campaign for Accountability previously asked the U.S. Senate Committee on Homeland Security and Governmental Affairs and the Federal Election Commission to investigate the 82-year-old billionaire on claims that he may have “possibly promoted prostitution” at his Las Vegas Sands empire, which also has operations in Singapore, Macau, and the United States.

Now, the group, which claims to use “research, litigation and aggressive communications to expose misconduct,” is taking back its accusations.

“The allegations relied upon in making the requests are false and we apologize for any inconvenience or embarrassment suffered by Mr. Adelson and his family as a result of our statements and actions,” CfA said in a statement.