Russia's deputy foreign minister Sergei Ryabkov said Tuesday he was "reasonably optimistic" world powers can reach a nuclear deal with Iran by a November 24 deadline, despite big gaps remaining.
"We are not working on plan B, that's for sure," he told reporters in Muscat, though he did not rule out an extension. "If by whatever reason, by whatever development, we are not there, I think we will have time on the evening of the 23rd to develop an alternative."