Iran's chief nuclear negotiator on Thursday warned the Western countries not to threaten his country, saying it would have "domino effect" in the Mideast region.
"World powers are now aware of Iran's effective role global security, playing with Iran's security would have domino effect," head of the Supreme National Security Council (SNSC), Saeed Jalili, told reporters on the sidelines of an international seminar on Iran 's nuclear program which started earlier in the day.

Iran's chief nuclear negotiator Saeed Jalili Jalili didn't say what kind of "effect" would happen if Iran's security is threatened, but he mentioned the range of Iran's neighbor countries.
"...Our role in Afghanistan and Iraq is in direction with peace, stability and improving governments there," said Jalili. The U.S. has troops in Iraq and Afghanistan now and has repeatedly accused Iran of supporting local insurgents to fight with coalition forces in those two countries. Iran has denied all the allegations.
On the issue of the upcoming nuclear talks between Jalili and EU foreign policy chief Javier Solana, Jalili confirmed the meeting would be held in London on Nov. 30.
"We are optimistic about the talks, but it also depend on the other side," he said.
Jalili's deputy Javad Vaidi said yesterday his higher-up would hold a meeting with Solana Nov. 30 in London, however, Solana has said he was not sure if the meeting could take place at the time that Iranian side declared.
The United States now is trying to push a third sanction resolution by the UN against Iran's nuclear program, and has never ruled out the possibility of a military strike on Tehran's nuclear facilities.
Iran has vowed to use its all means to fight against any foreign threats.
Source:Xinhua