The United States says it's cautiously optimistic about the visit to North Korea by a group of senior South Korean envoys.<br /> Pentagon spokesman Colonel Robert Manning told reporters on Monday that the Trump administration encourages talks between the two Koreas.<br />China has also welcomed the trip.<br />Beijing's foreign ministry said the Chinese government is looking forward to the meeting having a positive outcome and eventually laying the groundwork for talks between Washington and Pyongyang. <br />
