SEOUL, May 28 (Xinhua) -- South Korean President Moon Jae-in said Monday that his summit with the Democratic People's Republic of Korea (DPRK)'s top leader Kim Jong Un would be possible in the future without any complicated format.

Moon made the remarks in a regular meeting with his senior secretaries, according to the presidential Blue House.

His comments came after Moon and Kim held their surprise second meeting at the border village of Panmunjom Saturday, just a month after their April 27 summit, the third-ever inter-Korean summit.

What was more meaningful than any at the Saturday summit, Moon said, was the skipping of complicated procedure and format to discuss urgent issues between the leaders of the two sides.

Moon called it a daily round between friends that can easily contact, easily arrange and easily meet, saying a formal summit such as the April 27 inter-Korean summit will also be very significant to develop inter-Korean relations.

He noted that if the two sides can frequently hold summits on urgent issues, though not formal meetings, it would further speed up the development of inter-Korean relations.

Moon instructed secretaries to keep in mind the possible inter-Korean summits such as the Saturday meeting in no format, saying the secretaries should examine necessary measures in preparation for such summits.