Alaeddin Boroujerdi, the head of the Iranian Parliament's powerful National Security and Foreign Policy Committee, said lawmakers would quickly "begin a revision of Iran's relations" with the International Atomic Energy Agency.

He did not say what options would be discussed. But one possibility is Iran could restrict IAEA inspectors' access to nuclear facilities — making the country's nuclear program even more opaque.

Foreign Ministry spokesman Ramin Mehmanparast said imposing new sanctions "is not constructive, and will destroy the grounds for solving the current crisis" with the West.

The new sanctions do not affect oil exports, the lifeblood of Iran's economy, because targeting them would have cost the US essential support from veto-wielding Security Council members Russia and China. Both have strong economic ties with Tehran and the Russians and Chinese also nixed any ban on gasoline imports.

Russia said Thursday that the new sanctions do not forbid the delivery of S-300 air-defense missiles to Iran. Israel and the US have urged Russia not to supply the missile systems, which would substantially increase Iran's defense capability. Russia agreed to sell the missiles in 2007, but has not yet delivered them.

Russian Foreign Ministry spokesman Andrei Nesterenko told journalists that the UN resolution does not apply to air-defense systems, with the exception of shoulder-fired missiles.

At an IAEA meeting in Vienna on Thursday, Arab states backed by Iran urged Israel to join a global anti-nuclear arms pact at a rare and divisive debate. Israel, presumed to have the Middle East's only nuclear weapons arsenal, condemned the push at the meeting as being fueled by countries which question the Jewish state's existence.

Western countries warned that honing in on Israel could jeopardize broader steps aimed at banning weapons of mass destruction in the Middle East. "What the region needs is to come together in a cooperative, consensual way," Washington's envoy Glyn Davies said. "This is not going to happen if the parties of the region engage in name-calling, if they wag fingers at each other."

It was the first time the IAEA's policy-making board tackled the topic since 1991, coinciding with wider scrutiny of Israel after its raid on a Gaza-bound aid convoy and a UN conference which put its nuclear policy in the spotlight.

"Israel continues to defy the international community through its continued refusal to accede to the Non-Proliferation Treaty (NPT)," Sudan's envoy Mahmoud El-Amin told the 35-nation meeting on behalf of Arab states. "The Israeli nuclear danger is reinforced by (its) aggressive policies toward Arab countries," he said.