North Korean leader Kim Jong-un waves at Pyongyang Station, Tuesday, after traveling a day-and-a-half by train from Vietnam, where his high-stakes nuclear summit with President Donald Trump ended without any agreement. AP-Yonhap

By Kim Yoo-chul

President Moon Jae-in is considering sending National Intelligence Service chief Suh Hoon to North Korea as a special envoy to discuss another summit with its leader Kim Jong-un, a presidential aide said Wednesday.

This is to find a breakthrough in the stalled negotiations between North Korea and the United States amid questions about the future of their denuclearization talks following the failed Hanoi summit.

"Suh may travel to Pyongyang as soon as possible to arrange another summit between the leaders of the two Koreas. Details of Suh's trip to the North Korean capital have yet to be fixed," the aide said on condition of anonymity.

Suh has played a significant role in realizing three previous inter-Korean summits under the Moon administration.

The source said it remains to be seen whether the spy chief will deliver a handwritten message from Moon to Kim.

Late Tuesday, Rep. Park Jie-won of the minor opposition Party for Democracy and Peace who was also a former special envoy to the North, told a local radio talk show that sending a special envoy was a matter of the utmost priority.

"Because one obvious reason for the breakdown of the summit is its process, South Korea's role is to keep the momentum of the nuclear talks between Washington and Pyongyang alive by helping them continue dialogue. We have to send a special envoy to North Korea to get their thoughts and for conditions or prerequisites to prevent a possible vacuum in negotiations," Park said.