Iran says its willing to negotiate with Russia over international access and concerns about its nuclear programme.It comes after President Mahmoud Ahmedinajad yesterday threatened to press ahead with full-scale uranium enrichment. In a statement on national television this morning, Iran’s diplomatic service spokesman said further talks would take place with Moscow about its plan to create a joint uranium enrichment site in Russia. But he also stressed that Tehran would not be intimidated by its referral to the Security Council by the UN’s atomic energy agency. The move to report Tehran could lead to possible sanctions. But no decisions will be made for at least a month to give diplomacy a chance. In response, Iran said it would end snap UN checks on its nuclear research, tearing up the so-called additional protocol on proliferation it signed three years ago.