VIENNA, November 20 (Sputnik) — Iranian Foreign Minister Mohammad Zarif, EU chief negotiator Catherine Ashton and US Secretary of State John Kerry will hold a trilateral meeting on Thursday evening, as part of the decisive round of talks over Tehran's nuclear program, a source in the Iranian delegation told journalists.
"Iran FM Zarif to have trilateral w John Kerry and Catherine Ashton at 8:30 tonight," the source said.
Kerry has arrived in the Austrian capital to "check in on Iran talks." The source added that foreign ministers of the UK and France will arrive to Vienna on Friday.
The final round of Tehran’s talks with the P5+1 group, comprising Russia, the United States, the United Kingdom, France, China and Germany, began in Vienna on Tuesday.
Tehran claims its nuclear development is aimed purely at civilian needs, such as meeting the country’s growing energy needs. However, the West suspects Iran of developing a nuclear weapon under the guise of a peaceful program. Iran’s earlier nuclear activities triggered the imposition of sanctions against Iran by the UN Security Council, as well as by the United States and the European Union.