Iran nuclear talks to be extended until July

Nuclear negotiators have failed to meet a Monday deadline for a deal that would ease international concerns about Iran's atomic program and are poised to extend the negotiations for a comprehensive agreement until July 2015, diplomats said.

Under the terms of limited agreements reached after a frenetic six days of talks in Vienna, a political accord is to be completed by March 1, with final details contained in annexes to be sealed by July 1, the diplomats said.

Iran, the five permanent members of the U.N. Security Council and Germany...