Iran & major world powers will extend their talks over Tehran's disputed nuclear programme until July 2015.
Talks between Iran and six powers are expected to fail to reach a deal to lift US and EU sanctions.
A senior Russian diplomat says if there’s a will in Washington & Tehran, a deal could be reached soon.
Leaders met to tackle a decade-long dispute that has raised the risk of wider conflict in the Middle East.
Iran sees no alternative to a diplomatic settlement with six world powers on its nuclear programme.
While all sides agree to keep talking, little progress has been made in overcoming significant disagreements.