U.S. envoy on North Korea Stephen Bosworth on Tuesday said he hopes that serious talks over Pyongyang's nuclear programme will begin soon. Mr. Bosworth arrived in the South Korean capital Seoul Tuesday afternoon to discuss the issue. He said he is seeking to consult and coordinate positions of the countries involved in the stalled six-party talks aimed at dismantling North Korea's nuclear programme. During his two-day stay in Seoul, as part of the Asian tour that will also bring him to China and Japan, the former U.S. ambassador to South Korea will meet with South Korea's chief negotiator to the six-party nuclear talks, Wi Sung-lac, and Foreign Minister Kim Sung-hwan. Seoul's foreign ministry spokesman said the US envoy's Asian trip is expected to lay foundations for the upcoming meeting between U.S. President Barack Obama and Chinese President Hu Jintao in Washington later this month.