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 UN Security Council and Germany had set a deadline of midnight tonight to come to a final agreement on a mechanism whereby Iran's pathways to develop a nuclear weapon would be closed in return for relief from international sanctions.
He stressed that while July 1 was the new deadline for a comprehensive deal, the expectation was that broad agreement would be in place by March 1.
In the interim, expert level talks will resume in December at an as yet undetermined venue and Iran will receive about USD 700 million per month in frozen assets, Hammond said.
Today's result matched earlier word that negotiations had turned two-track, with the sides still racing to reduce differences at the negotiating table but also working on how long to extend the talks.
Chinese Foreign Minister Wang Yi today said negotiators were still having "consultations" on a final agreement that meets both US demands for strict curbs on Tehran's nuclear program and Iran's push for sanctions relief, also suggesting that moves toward an immediate deal had not yet been abandoned.
International negotiators are worried that Iran is using its nuclear development program as a cover for developing nuclear weapons, and they have imposed economic sanctions on Tehran.
