AP/ February 11, 2009, 6:59 PM

Russia Angered By Iran Nuke Plans

Russia is increasingly frustrated with Iran's reluctance to compromise on its nuclear activities, and that anger is helping the United States and other nations seeking to refer Tehran to the U.N. Security Council, diplomats said Thursday.

Both Russia and China are veto-wielding members of the Security Council and both oppose Iran being referred to the top U.N. decision making body.

But increasing frustration in Moscow could swing the Russians closer to the U.S.-European position and indirectly pressure Beijing to also join the mainstream and moderate its opposition to Security Council action, one diplomat said. He, like others talking to The Associated Press, demanded anonymity in exchange for divulging confidential information.

Russia has played an increasingly important role in getting Iran back to negotiations meant to pressure Tehran to compromise on its plans for uranium enrichment. The Americans and Europeans recently agreed to give up their demand that Iran renounce enrichment and related activities and endorsed a plan that would allow Iran to convert uranium but move the enrichment process to Russia.

Carrying out the enrichment in Russia theoretically would deny Iran the capacity to produce weapons grade uranium for nuclear weapons — something the Americans and their allies say Iran wants to do. Tehran insists it is interested in enrichment only to make nuclear fuel.

Russia, a key Iranian ally, has been increasingly active in the last few weeks to try and bridge differences between Tehran and the West, but has been frustrated by Iranian intransigence, the diplomats said.

Most recently, they said Iranian officials told the Russians on Wednesday they would not resume uranium conversion — only to restart the process a few hours later.

The move to restart conversion was expected. Iran had already served notice several weeks ago that it would process a new batch of raw uranium into a precursor of the gas used to enrich uranium.

Still, with Iran under international pressure to show it is willing to compromise on its insistence to having full control of the uranium enrichment process, Russia and other countries would have welcomed a decision not to resume conversion.

Senior Iranian officials told Russian counterparts just that on Wednesday, saying a relaunch was postponed for "technical reasons," the diplomats revealed.