Iranian Foreign Minister Mohammad Javad Zarif and his U.S. counterpart John Kerry met in Vienna on the sidelines of the international conference regarding the Syrian conflict to discuss the progress of the implementation of the nuclear agreement.

John Kerry and Mohammad Javad Zarif

John Kerry and Mohammad Javad Zarif

ISNA reports that the two sides discussed the coordination of the final steps to implement the Joint Comprehensive Plan of Action.

Zarif said: “In the meeting, [we discussed] the expert and serious issues regarding the elimination of the sanctions and the mechanism for execution of the commitments regarding the Arak nuclear facility.”

He added that at every stage of the implementation, there was a need to receive the explanations from the U.S. “to make certain the leader’s recommendations are being recognized.”

Iran’s Supreme Leader Ayatollah Khamenei issued a letter in September calling for continued monitoring of the implementation of the nuclear agreement “to avoid major possible harms it could result in.”

Iran has committed to a redesign of the Arak reactor to eliminate the possibility of producing plutonium that could be used in nuclear weapons.

According to the agreement, Iran is expected to halt activities at the Arak facility and remove its heavy water core before sanctions are removed, and the 5+1 countries are to assist Iran in redesigning the facility.