The U.S. government fined a Pacific island casino operator $75 million for what it called “willful and egregious” violations of anti-money-laundering rules going back to 2008.

The Treasury’s Financial Crimes Enforcement Network, or FinCEN, Wednesday hit the Tinian Dynasty Hotel & Casino on the Northern Mariana Islands, a U.S. commonwealth, with the civil fine, which was the biggest ever issued against a casino by FinCEN and the fourth largest ever imposed on any entity by the agency, said spokesman Steve Hudak.

The penalty is a sign that FinCEN is acting after issuing warnings to casinos to step up their efforts to prevent money laundering. The previous top penalty against a casino was a $10 million fine imposed on Atlantic City’s Trump Taj Mahal casino in March, which at the time was seen as an increase in enforcement.

The Tinian Dynasty Hotel & Casino is located on Tinian, one of 14 islands that form the Northern Mariana Islands, located north of Guam and about three-quarters of the way from Hawaii to the Philippines. Along with Puerto Rico, the Northern Mariana Islands are one of two commonwealths of the U.S.

FinCEN harshly criticized the casino, saying it had no program in place to detect money laundering, and that it helped customers carrying out suspicious transactions, even offering advice on avoiding U.S. laws.