In this April 27, 2018 file photo, DPRK leader Kim Jong-un, left, and ROK President Moon Jae-in cross the military demarcation line at the border village of Panmunjom in Demilitarized Zone, the ROK. (KOREA SUMMIT PRESS POOL VIA AP)

SEOUL – The Republic of Korea's presidential Blue House said Monday that it had yet to decide on a date for a visit by leader of the Democratic People's Republic of Korea (DPRK) Kim Jong-un to Seoul.

Kim Jong-un's visit to Seoul could be delayed to next year as ROK presidential Blue House indicated it can be made after the second DPRK-US summit

Blue House spokesman Kim Eui-keum said at a press briefing that it faced a moment to determine when Kim's visit to Seoul would be better – before or after the second DPRK-US summit – to ensure more effective peace and prosperity on the Korean Peninsula.

"(We) are discussing it with various possibilities being opened," Kim said.

ROK President Moon Jae-in traveled to Pyongyang in September for his third summit with the DPRK leader, who promised a reciprocal visit to Seoul at an early date. The Blue House had expected the visit to take place sometimes this year.

It seems now the Kim's reciprocal visit could be delayed to next year as the Blue House indicated the visit can be made after the second DPRK-US summit.

READ MORE: ROK's Moon says DPRK leader Kim to visit Seoul soon

US President Donald Trump said he would hold his second summit with the DPRK leader early next year. The first-ever DPRK-US summit between Trump and Kim was held in Singapore on June 12 this year.

The Blue House spokesman expressed his anticipation that the high-level talks between Pyongyang and Washington could be held at an earliest possible date. A senior-level DPRK-US dialogue, originally scheduled to be held in New York earlier this month, was postponed.

Asked about whether the ROK was still aiming to declare an official end to the 1950-53 Korean War by the end of this year, the Blue House spokesman said there has been no change.

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However, the spokesman noted that it cannot be decided upon only by the ROK government, saying that discussions were still underway to achieve the goal.

The Korean Peninsula remains in a technical state of war as the Korean War ended with an armistice, not a peace treaty.