Obama warns Iran of more sanctions

U.S. President Barack Obama said there would be more sanctions imposed on Iran if there is no breakthrough in nuclear talks with global powers in the coming months, responding to Israeli accusations that Tehran has been given a freebie.At a news conference in Cartagena, Colombia, where he was attending the Summit of the Americas, Obama said negotiations between Iran and six world powers that resumed on Saturday would not stretch on indefinitely and would require Iran to act.Were going to keep on seeing if we make progress. Now, the clocking is ticking and Ive been very clear to Iran and to our negotiating partners that were not going to have these talks just drag out in a stalling process, Obama said. But so far at least we havent given away anything.Negotiators from Iran and six world powers met on Saturday for the first time in more than a year to discuss concerns about Tehrans nuclear program, which Iran says is for energy and others fear is meant to build an atomic bomb.The group, which included the United States and the other four permanent U.N. Security Council members Britain, France, China and Russia, plus Germany, agreed with Iran to reconvene in Baghdad on May 23.Israeli Prime Minister Benjamin Netanyahu voiced irritation that the next talks were in more than a months time, saying it was critical that Tehran stop enrichment right away.