U.S. judge John O'Sullivan rejected Zarrab's bail request in a hearing which lasted five minutes.
The prosecutor's office has also demanded the confiscation of all Zarrab's property related to the accusations of bank fraud and money laundering in the indictment.
The indictment also detailed a letter to the head of Iranian Central Bank written on behalf of Zarrab, which stated that the Zarrab family was ready to wage “economic jihad” against the U.S. sanctions.
It has also been announced that Zarrab will be kept at a federal prison until the next hearing in the case, scheduled for April 4.
Zarrab was arrested in Florida on March 21 on charges of conspiracy to conduct hundreds of millions of dollars in financial transactions for the Iranian government or other entities to evade U.S. sanctions. He had been at the center of massive corruption allegations embroiling senior Turkish government figures in December 2013.