A federal judge in Atlanta has issued a temporary restraining order against a Gwinnett County attorney and the bank where she housed her law firm trust accounts in what appears to be an international fraud case involving bitcoin sales.

Judge Mike Brown of the U.S. District Court for the Northern District of Georgia issued the March 8 order after GSR Markets Limited—an international trader in digital assets—sued after it wired over $4 million to Suwanee attorney Diana McDonald to buy bitcoin it never received, according to court documents.