Additional information added (first version posted at 14:38)
Azerbaijan , Baku, July 24 / Trend D.Khatinoglu/
Russian Foreign Minister
Sergey Lavrov invited his Iranian counterpart to Moscow for negotiation about Russia's "step- by- step" plan, Fars News agency reported.
Russian FM spokesman
Igor Vershinin submitted invitation letter to Iranian Deputy FM Mohammad-Reza Raouf Sheibani at his current visit to Iran.
Two weeks ago on Monday, Russian Foreign Minister Sergei Lavrov said a step-by-step approach should be used to end international doubts over Iran's nuclear program.
Lavrov said every time Tehran satisfactorily answered a question or concern of the IAEA, it should be rewarded, including freezing some sanctions and shortening the volume of sanctions.
Lavrov was speaking after talks in Washington with U.S. Secretary of State
Hillary Clinton, who did not directly address Lavrov's offer, but said Washington remains committed to a "dual track of pressure and engagement" on Iran.
However, Iranian president
Mahmoud Ahmadinejad refuted Russian "step-by-step" proposal saying "We took our step already by full cooperating with IAEA," on Tuesday.
But Iranian Foreign Minister Ali Akbar Salhi told IRNA on 22 July that Iran welcomes Russia's proposal and wait to receive "step- by- step" plan officially.
Salehi noted that Iran would like to have a win-win solution with West countries over this nuclear program.