[JURIST] The EU on Thursday pushed Tehran to resume negotiations on the country's nuclear activities and threatened to bring Iran before the UN Security Council [official website] for possible sanctions if it did not. The threat comes as a report by the International Atomic Energy Agency (IAEA) [official website], set to be released Saturday, is expected to confirm Iran's resumption of nuclear activities [JURIST report] and outline unresolved questions about Iran's nuclear ambitions. EU External Relations Commissioner Benita Ferrero-Waldner [official website] insisted that the EU still seeks "a negotiated solution to the nuclear issue," but she also warned Iran not to underestimate the strength of Europe. Iran has recently expressed an interest in negotiating with countries other than Great Britain, France and Germany [JURIST report] about its nuclear activities. The US, meanwhile, is pushing for a referral to the Security Council [AP report]. The US has repeatedly said that Iran is misleading the IAEA about its nuclear goals, and Undersecretary of State Nicholas Burns has said that "Iran must (face the) judgment of the international community." AP has more.