The Financial Crimes Enforcement Network has fined a California casino over alleged willful violations of anti-money-laundering regulations, its first enforcement action against a casino in six years.

California-based Lake Elsinore Hotel and Casino has agreed to pay about $900,000 to settle allegations that it failed to comply with the Bank Secrecy Act for more than 4½ years, FinCEN said Wednesday. These violations included failure to implement and maintain an effective anti-money-laundering program and failure to file currency transaction reports and suspicious activity reports.