LAUSANNE, March 27. /TASS/. Hossein Fereydoun, a brother and adviser of Iranian President Hassan Rouhani, joined the international talks on the settlement of the controversial Iranian nuclear issue, which started in Lausanne on March 26, a source in the Iranian delegation at the talks said on Friday.
"It emphasizes the political will of Iran to achieve an agreement on the issue," the source told TASS.
Saturday in Lausanne started with a meeting between Iranian Foreign Minister Mohammad Javad Zarif and US Secretary of State John Kerry. Fereydon joined the two of them later in the afternoon.
The previous round of the Iranian nuclear talks in Lausanne was held during six days - between March 15 and March 20 - with daily consultations between Kerry and Zarif.
Both the representatives of Washington and Tehran have repeatedly said that the negotiations in Lausanne were successful. Head of Atomic Energy Organization of Iran (AEOI) Ali Akbar Salehi said the sides had agreed on 90% of technical issues.
The US presidential administration said however the negotiations had less than a 50% chance of success.
The issue of lifting sanctions against Iran is one of the key stumbling blocks at the negotiations. Tehran demands their full and immediate lifting while Washington first wants to get firm guarantees that the Iranian nuclear program has absolutely peaceful purposes and this should be confirmed by the International Atomic Energy Agency (IAEA) experts.
Iran says it needs nuclear power to generate electricity, but Western powers led by the United States claim Iran’s eventual aim is to create nuclear weapons.