The negotiations between Iran's scientists and their counterparts from P5+1 group started in Istanbul on July 3, Mehr News Agency reported.
Earlier, Turkey's foreign ministry spokesman Selcuk Unal has said today that scientists of six world powers and Iran will discuss Iran's nuclear program in Istanbul, a meeting that was scheduled during the last talks of P5+1 and Iran in Russia last month.
Iran and 5+1 group (Britain, China, France, Russia, and the United States plus Germany) held three sessions of talks in Baghdad on May 23 and 24 after an earlier round of negotiations in the Turkish city of Istanbul in mid-April.
Another round of nuclear talks was held in Moscow on June 18-19. The Iranian negotiating delegation in the Moscow talks was led by Secretary of the Supreme National Security Council (SNSC) Saeed Jalili, and the P5+1 group of countries was headed by Catherine Ashton.