A Turkish national and two Iranian citizens were indicted in Manhattan U.S. District Court on charges of engaging in hundreds of millions of dollars-worth of transactions on behalf of the the government of Iran and other Iranian entities in violation of U.S. sanctions.  Reza Zarrab, a dual Turkish-Iranian citizen, was arrested on March 19, while his two Iranian co-defendants, Camelia Jamshidy and Hossein Najafzadeh, remain at large.  Between 2010 and 2015, the three men allegedly conspired to use an international network of companies located in Iran, Turkey, and elsewhere to induce U.S. banks to unknowingly process financial transactions for Iranian entities in violation of U.S. sanctions.