Moderate cleric Hassan Rowhani assumed Iran\'s presidency on Saturday promising to work to lift punishing international sanctions imposed on the Islamic republic over its controversial nuclear programme. Rowhani, 64, officially became the Islamic republic\'s seventh president after receiving a formal endorsement from supreme leader Ayatollah Ali Khamenei at a Tehran ceremony. His public inauguration will take place on Sunday when he takes the oath of office in parliament, which according to media reports will be attended by 10 regional presidents and other high-ranking foreign officials. Rowhani begins his four-year term as Iran faces grave challenges over its ailing economy and international isolation due to the controversial policies of his firebrand predecessor, Mahmoud Ahmadinejad. \"The trajectory of my government will be saving Iran\'s economy and (establishing) constructive engagement with the world,\" Rowhani said in an address broadcast live on state television. My government, \"will take fundamental steps in elevating Iran\'s position based on national interest and lifting of the oppressive sanctions,\" he said. \"The country needs a national determination to keep its distance from extremism and needs to concentrate on the rule of law.\" At the ceremony in a religious hall packed with top military and government officials, as well as foreign ambassadors, Khamenei heaped praise on Rowhani and said his election had delivered a \"clear message\" to the world. \"There is a clear message in electing a competent individual with more than three decades of service to the (Islamic republic\'s) establishment,\" Khamenei said in a statement. \"The message is of loyalty to the (Islamic) revolution, hope in the establishment ... and trust in individuals determined to add to its success and reduce problems\" in Iran, he added. Source: AFP