"We need to come to the point where no country has any nuclear weapons and at the same time all weapons of mass destruction and nuclear arms need to be destroyed," Foreign Ministry spokesperson Ramin Mehmanparast told state news agency IRNA.

However, countries should have the right to "make use of nuclear activities for peaceful purposes," he added.

Speaking in Moscow, Iran's foreign minister Ali Akbar Salehi also said that North Korea as a sovereign state had its right to carry out a nuclear test.

"North Korea, as far as I know, is not signatory to Non-Proliferation Treaty, so it can afford acting according to its own interests," Salehi told journalists.