A Maryland man and a man from Miami have been charged for their alleged roles in running a nationwide prostitution ring that took advantage of immigrant women and sent them to Tysons Corner for their first meetings with customers, a federal indictment unsealed Wednesday said.

The ring, with trysts set up through the Web site MiamiUltimate.com, was allegedly run by Rafael Bernabe-Caballero, of Miami. He would enlist immigrant women into his escort service, only to tell them moments before their first meeting that they were expected to be prostitutes, the indictment filed in a Michigan federal court said. After their first trysts in Tysons Corner, the women were flown around the country on Miami Ultimate’s tab, often landing in Detroit, Chicago, Minneapolis and Cleveland.