The White House said on Sunday it was disappointed that Tehran had rejected an offer to hold informal talks with European countries and the United States over the Iran nuclear issue.
"While we are disappointed at Iran's response, we remain ready to reengage in meaningful diplomacy to achieve a mutual return to compliance with JCPOA commitments," a White House spokesperson said.
"We will be consulting with our P5 1 partners on the best way forward," the spokesperson added.
Earlier in the day, Iran said that time is "not appropriate" for Iran to hold an informal meeting with European countries and the United States.
"Considering the recent positions and actions of the United States and three European countries, the Islamic Republic of Iran does not consider the time to be appropriate for an informal meeting proposed by the European coordinator of the Joint Comprehensive Plan of Action (JCPOA)," said Iran's Foreign Ministry Spokesman Saeed Khatibzadeh.
Last week, the European Union offered to attend an informal meeting between Iran and other parties to the JCPOA, which refers to the 2015 Iran nuclear deal, with the United States also attending as a guest.
The road ahead is very clear, the Iranian spokesman said, that the United States should end its "illegal" and unilateral sanctions and return to its JCPOA commitments.
