"Iran does not see any reason to suspend its nuclear activities," Mottaki was quoted as saying one day after Iran's top nuclear negotiator Ali Larijani and European Union (EU) foreign policy chief Javier Solana finished their new round of talks in Berlin.

The negotiators said all the topics had been discussed and there had been "some positive outcomes." However, neither of them gave any further details.

Mottaki said the West had recognized that threats of sanctions or reports to the UN Security Council could not solve the Iranian nuclear issue.

"The foreigners have found out that the language of threats and a referral (of the Iranian nuclear issue) to the (UN) Security Council is ineffective and there is no other way but to hold talks," Mottaki said.

Meanwhile, the Iranian foreign minister denied that Tehran would use its oil as a political weapon, saying "there is no need to do so."

On Thursday, Iranian President Mahmoud Ahmadinejad also pledged that his country "would not bend one inch" on its nuclear program.

"The Iranian people will not back one inch under any force and pressure," state television quoted Ahmadinejad as telling thousands of supporters in the city of Karaj, west of Tehran.

"They wanted us to suspend (uranium enrichment activities) for one day, but we said we won't do it," he added, giving the West a clear rejection to halting uranium enrichment.

The UN Security Council adopted a resolution in late July, urging Tehran to suspend by Aug. 31 all enrichment-related and reprocessing activities, including research and development, or face prospect of sanctions.

IAEA chief Mohammed ElBaradei has presented a report to the Security Council saying "Iran has continued enriching uranium despite a UN nuclear deadline for it to suspend nuclear activities or face possible sanctions."

At an informal meeting in Brussels earlier this month, EU foreign ministers decided to maintain serious talks with Tehran in efforts to solve Iran's nuclear issue through diplomacy.