VIENNA, May 29 (RIA Novosti)-Ministers from the five permanent members of the UN Security Council and Germany will meet in Vienna June 1 to continue efforts to break the impasse over Iran's controversial nuclear program, diplomatic sources said.
The U.S. State Department said previously that the meeting could be held by the end of the week.
Igor Ivanov, the secretary of the Russia's Security Council, returned from talks in Tehran on Sunday.