The talks will held in Istanbul next month.
Turkey's Ahmet Davutoglu said he met Iran's Ali Akbar Salehi at a regional economic summit late Wednesday. Salehi, who is accompanying Iranian President Mahmoud Ahmadinejad, is making his first international appearance since replacing Iran's sacked foreign minister last week.
Davutoglu said Thursday that Turkey was working toward "reducing the environment of tension" over Iran's nuclear program.
Iran held a first round of talks with officials from the U.S., China, Russia, France, Britain, Germany and the European Union in Geneva earlier this month.
ISTANBUL - The Associated Press