Talks in Baghdad resumed on Thursday between Iran and world powers.<br/> <br />The topic is Tehran's nuclear programme, which the West suspects is aimed at nuclear bomb research.<br/> <br />Iran maintains its program is peaceful, and is only for power generation and medical uses.<br/> <br />Consisting of the five permanent members of the U.N. Security Council - the United States, Russia, China, France and Britain - as well as Germany, the P5+1 talks follow a 15-month diplomatic freeze.<br/> <br />According to a U.S. official, the first day of talks showed a "fair amount of disagreement" but also areas of common ground.<br/> <br />Western diplomatic sources say an upcoming U.N. watchdog report is due to show Iran has brought online more uranium enrichment centrifuges.<br/> <br />That, fears the West, will provide more material for atomic weapons.<br/> <br />The conference in the Iraqi capital is being closely watched by international energy markets.<br/> <br />They remain nervous over extended sanctions imposed on Iran's crude exports, as well as the spectre of a Middle East conflict arising from possible Israeli strikes against Iran's nuclear installations.<br/> <br />Travis Brecher, Reuters