Iran warned the European Union (EU) Sunday that the next round of negotiators between the two sides will be the last chance to save the stalled nuclear talks.

"Iran has decided to negotiate with the European trio (France, Germany and Britain) for one more time upon their request, and the upcoming meeting will be their last chance," Foreign Ministry spokesman Hamid-Reza Asefi told a weekly news briefing.

Iran's decision was made also at the behest of the international community, including the United Nations, Spain, Japan, South Africa, Malaysia and Russia, Asefi added.

Iran's parliament, meanwhile, approved a bill to press the government to resume uranium enrichment activities, which Tehran suspended last November to pave the way for talks with the EU on its disputed nuclear program.

Washington and the EU have threatened to refer Iran's case to the UN Security Council for possible sanctions if Iran restarts enrichment-related work.

However, Iran shrugged off the warning. "The referral does not worry us at all. If the case is taken to the Security Council, the European countries and the United States will sustain more damages than Iran," the spokesman said.

"No matter whether there is an agreement (with the EU) or not, we will resume some enrichment activities," Asefi said. "We will not give up our rights and will carry out our activities under the related regulations."

Blaming the EU for prolonging negotiations, Iran has announced that it is going to restart part of the suspended enrichment- related activities, maybe some of those in the uranium conversion facility near Isfahan.

But the exact date of the resumption has not beet set yet.

The EU powers France, Britain and Germany have tried to persuade Iran to abandon its uranium enrichment program in return for economic and political incentives.

The EU shared Washington's suspicions that Iran's uranium enrichment program could be used to make nuclear weapons.

Tehran claims its nuclear program is intended only for producing fuel for power plant and it will never give up its legitimate rights to own nuclear technology.