The leaders of North and South Korea say they have agreed to turn the Korean peninsula into a “land of peace without nuclear weapons and nuclear threats.” The agreement was announced Wednesday on the second day of talks between North Korean leader Kim Jong Un and South Korean President Moon Jae-in. They spoke to reporters after meeting in Pyongyang. At the meeting, North Korea announced plans to invite international observers to watch the closing of its missile testing center and launch area at Dongchang-ri. North Korea also offered to close its main nuclear center at Yongbyon, but on one condition. In exchange, the North said it was seeking “corresponding measures” from the United States. It is not yet clear what those measures would be. South Korean President Moon traveled to the North Korean capital on Tuesday for his third meeting this year with the North Korean leader. Moon is seeking to break an impasse in negotiations to end the North’s nuclear weapons program.