Russian Deputy Foreign Minister Sergey Ryabkov said that extension of negotiations between the Group of Six (Russia, U.S., UK, France, China, Germany) and Iran is a risky practice, RIA Novosti reports.
The sides agreed in Geneva in November 2013 to compose an agreement guaranteeing the peaceful nature of the Iranian nuclear program. The agreement had not been reached by November 24, 2014, so the talks were extended until late June 2015.