Iran has asked to meet British, French and German negotiators in Brussels on Monday to discuss the standoff over Tehran's nuclear program, EU and British officials said. Germany, France, Britain and the US have called for Iran's referral to the UN Security Council, a move that could lead to sanctions. China and Russia remain unconvinced. EU and British officials - speaking on condition of anonymity due to the sensitive nature of the discussions - confirmed that senior officials from Britain, France and Germany would hold talks with Iran's deputy nuclear negotiator, Javad Vaeidi, at Iran's request on Monday. The meeting will come as US Secretary of State Condoleezza Rice joins foreign ministers from the four other permanent Security Council members - Britain, France, Russia and China - plus Germany - in London on Monday in an attempt to break the diplomatic deadlock over Iran's nuclear program. Teheran claims its nuclear program is designed only for civilian purposes. The United States and Europe fear the Iranians are using the program as a cover to make nuclear weapons. The 35-nation board of the International Atomic Energy Agency meets on Thursday at the UN agency's headquarters in Vienna, Austria, to discuss the Security Council referral. Uranium enriched to a low level is used as fuel to produce electricity but further enrichment makes it suitable for use in a nuclear bomb.