A U.S. district court ruled on Thursday that $2.4 million in funds linked to a North Korean money laundering scheme must be forfeited to the U.S. government, court records show, in the latest blow to the Kim Jong Un regime’s network of overseas front companies.

The ruling comes after a Federal Bureau of Investigation (FBI) investigation uncovered a series of wire transfers between four unnamed companies acting on behalf of North Korea’s Foreign Trade Bank (FTB). 

According to court documents, the companies attempted to launder millions through the U.S. financial system in violation of the International Emergency Economic Powers Act