TEHRAN, Nov. 19 (Xinhuanet) -- Iran will refuse any further demands from the International Atomic Energy Agency (IAEA) to halt its uranium enrichment activities, a top national security official said on Wednesday.

    "We have said clearly that any phrase in a resolution aimed at transforming the voluntary pledge by Iran to suspend uranium enrichment into a legal obligation will be unacceptable to us," said Iran's Supreme National Security Council Hassan Rowhani.

    Rowhani made the remarks just one day before IAEA Board of Governors is to meet on Iran's nuclear program, the official IRNA news agency reported.

    Iran in October agreed to accept IAEA demands to suspend uraniumenrichment, but made clear that the voluntary suspension was to show its goodwill to the international community and it reserved the right to resume the activity at any time.

    Iran also pledged to sign and implement an additional protocol to the nuclear Non-Proliferation Treaty (NPT) which would allow IAEA inspectors to carry out more strict checks on its nuclear activity.

    Tehran has also handed what it said all the documentation on itspast and present nuclear activities to IAEA.

    But halting uranium enrichment is seen as crucial to preventing Iran from ever acquiring nuclear weapons. The United States and European Union are pressing for Iran to totally stop enrichment in return for guarantees of overseas nuclear fuel supply for Iran's nuclear plant.

    Rowhani maintained that Iran's domestic production of nuclear fuel is totally legitimate, saying Iran was under no obligation to concede to demands that go beyond the NPT or additional protocol, because under the NPT, legitimate work on the nuclear fuel cycle ispermitted.

    "We have said that after all this, our relationship with the agency should be normalized and we will not accept anything beyond the additional protocol and the safeguard clauses," Rowhani said. Enditem