Seoul, South Korea (CNN) North Korea said it would close a key missile test facility in the presence of "international experts" and potentially destroy its primary nuclear complex if the United States agrees to corresponding measures, South Korean President Moon Jae-in announced in a joint press conference with Kim Jong Un Wednesday.

The two leaders made the announcement on the second day of a three-day summit, their third this year, as part of efforts with the United States to contain the threat of war on the Korean Peninsula.

Speaking to the media Wednesday after a brief signing ceremony, Kim and Moon vowed to bring peace to the Korean Peninsula once and for all, something they first committed to at their April summit

"The world is going to see how this divided nation is going to bring about a new future on its own," Kim said to applause from those gathered.

Moon and Kim teased a potential historic fourth meeting between the two leaders, this time in the South Korean capital. The signed agreement stated that Kim would travel to Seoul "as soon as possible," something no North Korean leader has ever done. Kim's father, Kim Jong Il, agreed to visit Seoul, but never followed through.

South Korean President Moon Jae-in and North Korean leader Kim Jong Un at the Paekhwawon State Guesthouse in Pyongyang, North Korea, in this still frame taken from video taken Wednesday, September 19.

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