Iranian President Mahmud Ahmadi-Nejad left here today for Manama, Bahrain, to conduct talks with officials on bilateral relations. During the visit, a number of Memorandum of Understanding (MOUs) are scheduled to be signed between Iran and Bahrain. President Ahmadi-Nejad, then, will proceed to Riyadh, the Kingdom of Saudi Arabia, to participate in the Third Summit of the Organization of Petroleum Exporting Countries (OPEC), starting its two-day works later today in the Saudi Capital. The Iranian President is accompanied by Foreign, Oil, Economy and Finance Ministers.