Russian Foreign Minister Sergei Lavrov, first right, and US Secretary of State John Kerry, fourth right, during a meeting held as part of negotiations on the Iranian nuclear program between Tehran and the P5+1 group in Lausanne, Switzerland.

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Russian Foreign Minister Sergei Lavrov, first left, and his Chinese counterpart Wang Yi, first right, during a bilateral meeting held as part of negotiations on the Iranian nuclear program between Tehran and the P5+1 group in Lausanne, Switzerland.

29.03.2015#2596621

Russian Foreign Minister Sergei Lavrov, second right, and US Secretary of State John Kerry, left, during a bilateral meeting held as part of negotiations on the Iranian nuclear program between Tehran and the P5+1 group in Lausanne, Switzerland.

29.03.2015#2596620