Referring to a new package of incentives from Europe and the West for Iran to abandon uranium enrichment, Ahmadinejad was quoted by the official IRNA news agency as saying, "Any proposal that will oblige Iran to halt peaceful nuclear activities has no credit."

Iran says that the NPT gives all signatory states the right to carry out peaceful civilian nuclear activities and that Iran should enjoy such a right.

The president also expressed his disapproval of the scheduled meeting of foreign ministers of Britain, France and Germany over Iran's nuclear issue.

"We are surprised that some individuals intend to decide for us in our absence. They are still living in a colonial era and their decisions have no value for us," he said.

He also stressed that decisions reached in the absence of Iran would be meaningless, saying, "When we are not present at discussions, such decisions will have no meaning."

The president also made clear that Tehran would reject any new deal offered by European countries aimed at halting Iran's civilian nuclear activities.

"Any offer which requires us to halt our peaceful nuclear activities will be invalid," Ahmadinejad said.

The European Union trio -- Britain, France and Germany -- are considering offering a new package of incentives and penalties to Iran in an effort to persuade Tehran to give up uranium enrichment.

US Secretary of State Condoleezza Rice said on Wednesday that Washington was ready to wait "a couple of weeks" for the Europeans to make their proposals before pressing for tough UN action.

Washington has been trying to press the UN Security Council to pass a resolution, invoking Chapter 7 of the UN Charter, to oblige Iran to suspend uranium enrichment or face sanctions or even military strikes.

Iran has insisted that its nuclear program is fully peaceful, denying Washington's accusation that the Islamic Republic is secretly developing nuclear weapons under a civilian front.