“The Iranian authorities have not yet decided to withdraw from the NPT,” ISNA quoted Mousavi as saying.

On the eve of Iran’s ambassador to the UK, Hamid Baedinejad allowed Iran to withdraw from the Treaty on the Non-Proliferation of Nuclear Weapons if the nuclear deal is finally terminated.

In May, Russia's Deputy Foreign Minister, Sergei Ryabkov, said Moscow was warning Tehran against the possible withdrawal of the Middle East state from the NPT.