A senior Iranian official Sunday warned the western countries that issuing a new sanction against Iran would be a wrong action which would cost dearly, the official IRNA news agency reported.
Iran's Deputy Secretary of the Supreme National Security Council (SNSC) for International Affairs Javad Vaeedi made the warning while speaking at a gathering in Amir Kabir University titled "An end to Iran's Nuclear Dossier."
He said some of the western countries seek to tread the wrong path and "We advise them to learn concrete lessons from their past mistakes."
He slammed the West's attempt of giving birth to a new sanction as "a blatant interference" in Iran's domestic affairs.
Vaeedi's statements came a day before the five permanent members of the UN Security Council -- the United States, Russia, China, Britain and France -- plus Germany are expected to meet in Washington on Monday to discuss a proposed third UN Security Council resolution over Iran's controversial nuclear programs.
The six countries have met for several times on the thorny issue but made no significant progress.
France, Britain and Germany formally introduced a draft resolution to the UN Security Council Thursday that calls for further sanctions against Iran over its refusal to suspend sensitive nuclear enrichment activities.
However, Iran has downplayed the effect of possible new sanctions, saying Tehran would show a "serious and logical reaction" if the UN Security Council issues a third resolution.
The UN Security Council has adopted two resolutions -- one in December 2006 and the other in March 2007 -- in attempts to force Tehran to suspend uranium enrichment activities and give up its controversial nuclear programs.
The Untied States and other western countries have accused Iran of using a civilian nuclear program as a cover to develop nuclear weapons, a charge repeatedly denied by Tehran.