Iran says it is ready to continue multifaceted talks with major world powers based on the framework of previous negotiations held in Istanbul and Geneva.
"Iran is prepared to resume talks based on the Geneva package and negotiations in Istanbul whenever the P5+1 member states are ready," Foreign Ministry Spokesman Ramin Mehmanparast said on Thursday, quoted by Fars News Agency.
The P5+1 comprises of Britain, China, France, Russia, and the United States plus Germany.
Iran and the P5+1 held two rounds of multifaceted talks in Geneva in December 2010 and in the Turkish city of Istanbul last January.
"The West should consider Iran's explicit views about all common points in negotiations among several countries," Mehmanparast said.
He added that the letter of EU Foreign Policy Chief Catherine Ashton indicated West's disagreement with Iran's proposals during negotiations in Geneva and Istanbul.
In a letter sent to Iran in early February following the January talks in Istanbul, Ashton, who represents the six major powers, reiterated the P5+1's position on Iran's nuclear program but also affirmed that the world powers were keen to continue talks with Iran without any preconditions.
On May 10, Secretary of Iran's Supreme National Security Council Saeed Jalili responded to an earlier letter by Ashton.
Jalili welcomed the talks with the P5+1 based on common grounds and in a pressure-free atmosphere.
Jalili described "respect for nations' rights and avoidance of pressure" as two very basic principles for cooperation.
On May 17, Ashton hinted that the P5+1 would not hold additional talks with Tehran.
Referring to Jalili's letter, she said, "On its own, Dr. Jalili's letter does not contain anything new and does not seem to justify a further meeting."