SEOUL, April 10, SPA -- South Korean President RohMoo-hyun and Chinese Premier Wen Jiabao agreed Tuesday to step up cooperation to help end North Korea's nuclear weapons programs, during the first visit by a Chinese prime minister to Seoul in seven years. The two sides also said they hope efforts toward apossible free trade deal between them would yield positive results, according to Roh's office, the Associated Press reported.--SPA www.spa.gov.sa/439806