Talks in Brussels are not necessary before the resumption of indirect nuclear talks with Iran in Vienna, State Department spokesperson Ned Price said Monday.

Reference to possible talks in Brussels with the EU emerged after the visit of European Union's chief negotiator Enrique Mora to Tehran on October 14.

Reports in Iranian media on Sunday suggested a possible meeting in Brussels, but the European Union's foreign policy chief Josep Borrell played down the chance of any talks outside of Vienna earlier on Monday.

Iran has said it wants to review documents from the first six rounds of talks with EU in Brussels, but that would not be different from negotiations and would effectively leave Washington out of the process for an agreement to revive the Joint Comprehensive Plan of Actions, JCPOA.

Iran has been refusing to return to the Vienna talks that began in April and were suspended in June when Tehran said its new president needed time to form a government. In the meantime, Iran continues to enrich uranium up to 60 percent, getting closer to having enough fissile material for a bomb.