South Korean President Roh talks with visiting UN General Assembly President Ping at the presidential Blue House in Seoul. South Korean President Roh Moo-hyun (R) talks with visiting U.N. General Assembly President Jean Ping at the presidential Blue House in Seoul November 25, 2004. North Korea wants urgently to restart six-party talks on its nuclear programmes, but is still demanding certain conditions be met, a top U.N. official told South Korea's Yonhap news agency on Thursday. North Korea agreed with the format of the talks, Yonhap quoted Ping as saying. REUTERS/Lee Jae-Won