TEHRAN (AFP) - Iran on Friday stood firm against intense new international pressure over its disputed nuclear programme, and Russian Prime Minister Vladimir Putin warned the West against staging an attack. Spiritual leader Ayatollah Ali Khamenei insisted that Iran must defend its right to nuclear power as world powers demanded urgent talks with Tehran on its nuclear drive and Washington insisted there was nothing in its new proposals. We must stand firm for our rights. If we give up our rights, whether nuclear or other rights, this will lead to decline of society, said Khamenei, who has the final say in all national issues, in an address during Juma prayers at the Tehran University. We will walk the path of decline if instead of using freedom for scientific and ethical progress, we use it to spread sin, instead of standing against arrogance, aggressors and international looters, we feel weak in front of them and retreat, and instead of frowning at them we smile at them. Khamenei also warned Opposition groups they will be confronted if they jeopardise the nations security. Those who draw swords against the regime will be confronted, he said. The so-called P5+1 - Britain, China, France, Germany, Russia and the United States - are to seek an urgent meeting with Tehran, Cristina Gallach, spokeswoman for European Union foreign policy chief Javier Solana, said. She said the six would meanwhile continue to examine the latest propositions from Tehran, with which they still wanted substantive negotiations. French Foreign Ministry spokeswoman Christine Fages said Iran has not responded to requests for talks on its nuclear programme, and called on Tehran to attend a multilateral meeting before the UN General Assembly later this month. Irans package does not constitute a response to the proposals for negotiations on the Iranian nuclear programme, Foreign Ministry spokeswoman Christine Fages said in Paris. While warning that any attack on Iran over its nuclear project would be unacceptable, Russias Premier Putin also urged Tehran to show restraint. This would be very dangerous, unacceptable, this would lead to an explosion of terrorism, increase the influence of extremists, he said when asked about the possibility of an attack. I doubt very much that such strikes would achieve their stated goal. The Iranians should show restraint in their nuclear programme. We have told Iran that it has the right to a civilian nuclear programme but that it should understand what region of the world it is in, Putin said. This is a dangerous region and Iran should show responsibility, especially by taking into account Israels concerns, all the more so after the absolutely unacceptable statements about the destruction of the state of Israel. Meanwhile, Iranian President Mahmoud Ahmadinejads senior adviser Mojtaba Samareh Hashemi told The Washington Post that Iran is proposing to set up an international system to scrap and prohibit nuclear weapons worldwide. He said the package of proposals submitted Wednesday to the US and other powers calls for the elimination of existing weapons and measures to prevent countries without weapons from acquiring them.