Argentine authorities have arrested a Russian national for laundering stolen cryptocurrency from a $100 million North Korean heist, according to a blockchain analytics firm, a development that one expert said shows the DPRK is well integrated into global money laundering networks.

The Argentine Federal Police arrested the unnamed man for laundering illicit cryptocurrency for the Lazarus Group and other actors, including “child sexual abuse vendors and terrorist financiers,” the U.S.-based TRM Labs announced on its blog on Friday.