Iran talks will be extended with ‘outlines of agreement’: Kerry

US Secretary of State John Kerry says nuclear negotiations between Iran and the five permanent members of the UN Security Council plus Germany would be extended only when the two sides agree with the basic framework of a deal.

"The only chance I can see of an extension at this point in time would be that you really have the outlines of the agreement," Kerry said.

In an interview with NBC News aired on Sunday, Kerry added that outlining the basics of the agreement was crucial before a possible extension.

"But if we're not able to make the fundamental decisions that have to be made over the course of the next weeks, literally, I think it would be impossible to extend (the talks)," he said.

"I don't think we would want to extend at that point. Either you make the decisions to prove your program is a peaceful one, or if you're unable to do that, it may tell a story that none of us want to hear."

The top US diplomat met with his Iranian counterpart Mohammad Javad Zarif on Friday and Sunday in Munich.

The Iranian foreign minister also echoed the similar opinion about the extension of the talks during a press conference on the sidelines of the Munich Security Conference in Germany.

“I do not think another extension is in the interest of anyone, as I do not believe this extension was either necessary or useful,” Zarif said.

Iran and the P5+1 group of countries – Russia, China, France, Britain, the United States and Germany – are seeking to reach a political agreement by the end of March and to confirm the full technical details of the accord by July 1.

Iran and the P5+1 group are seeking to reach a comprehensive agreement after an interim deal was signed in November 2013.