Ask what Korea is talking about.

North Korea has sent a letter to the president of the U.N. Security Council (UNSC) calling last month's land mine blast near the border an incident "fabricated" by South Korea, Pyongyang's state media reported Monday, according to Yonhap and KBS World. The letter, sent by North Korea's permanent representative to the UN, rebuts South Korea's claim that the Sept. 21 blast—which injured three South Korean soldiers—violated the Korean War Armistice Agreement. South Korea had earlier sent its own letter to the UNSC urging North Korea to apologize and take responsibility, as Korea Times and KBS World report. Business Korea adds that South Korean military authorities estimate North Korea has planted about 960,000 new landmines in and around the DMZ over the past two years, accelerating what Pyongyang calls "fortification." Korean media coverage focuses on the diplomatic exchange, with Dong-A Ilbo reporting the North's "fabrication" claim as a direct rebuttal to Seoul's accusations.