GENEVA - No final nuclear agreement has been reached yet between Iran and six world powers, Iranian Deputy Foreign Minister Abbas Araqchi was quoted as saying on Sunday by Iran's IRNA news agency.The US also said they had failed in reaching a final agreement. "We do not have a lid yet tonight," a US State Department official said on SundayEarlier an Iranian diplomat said the talks aimed at securing a suspension of parts of Iran's nuclear program in exchange for limited sanctions relief had ended. A Western diplomat told Reuters on condition of anonymity that a deal was likely.