Given the task definition and input, reply with output. In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

New York (CNN) The Turkish government on Friday moved to seize assets belonging to a gold trader who, a day earlier, testified in US federal court that Turkish President Recep Tayyip Erdogan helped Iran evade sanctions. Reza Zarrab, an Iranian-Turkish gold trader currently testifying in a New York criminal trial, is now under investigation by the Terror and Organized Crime Bureau of the Istanbul Public Prosecutor's Office, according to Turkey's state-run Anadolu News Agency. Friday, the Turkish law enforcement agency decided to confiscate property that belongs to Zarrab and his relatives, the news agency said. Zarrab is married to the Turkish pop-folk singer Ebru Gündeş. Zarrab is being investigated for risking the security of the Republic of Turkey and aiding a foreign state.Turkish-Iranian gold trader Reza Zarrab has been testifying in US federal courtHe accused the Turkish President of helping to launder funds for Iran 
 Question:During his testimony this week, Zarrab has detailed how his network of shell companies relied on Turkish banks and officials to illegally move _ money.

Iran