VIENNA (Sputnik), Daria Chernyshova — Earlier in the day, consultations on Tehran's nuclear program between the political directors of Iran and the P5+1 group of international mediators began in Vienna.
"The bilateral [talks] between Iran and Russia is ongoing," the source stated.
It is the second day of the latest round of negotiations, aimed at hammering out an agreement guaranteeing the peaceful nature of the Iranian nuclear program ahead of an end-of-June deadline.