Iran says Brazil and Turkey have offered a new joint proposal for a nuclear fuel deal. Tuesday's remarks by Foreign Ministry spokesman Ramin Mehmanparast come as Tehran seeks to stave off new U.N. sanctions for its defiance of Security Council demands that it curb nuclear activities that could be used to make weapons. Mehmanparast says "the latest talks with Turkey and Brazil have produced a new formula that could pave the ground for understanding." He didn't elaborate during a weekly press conference but says both the Brazilian and Turkish presidents will travel to Iran next week following recent visits by their foreign ministers.