North Korean leader Kim Jong Un inspects the Mount Kumgang tourist resort, North Korea, in this undated picture released by North Korea's Central News Agency (KCNA) on October 23, 2019. North Korea has sent a notice to South Korea to discuss the removal of facilities built by South Korea at the North's Mount Kumgang resort, Yonhap news agency said on Friday. KCNA via REUTERS

North Korean leader Kim Jong Un inspects the Mount Kumgang tourist resort, North Korea, in this undated picture released by North Korea's Central News Agency (KCNA) on October 23, 2019. North Korean leader Kim Jong Un said South Korea's "backward" and "shabby" facilities at the North's Mount Kumgang resort must be removed and rebuilt in a modern way, state media reported on Wednesday, in the latest sign of cooling relations between the neighbours. KCNA via REUTERS

The Mount Kumgang tourist resort area is seen during North Korean leader Kim Jong Un's visit, North Korea, in this undated picture released by North Korea's Central News Agency (KCNA) on October 23, 2019. North Korea has sent a notice to South Korea to discuss the removal of facilities built by South Korea at the North's Mount Kumgang resort, Yonhap news agency said on Friday. KCNA via REUTERS

The Mount Kumgang tourist resort area is seen during North Korean leader Kim Jong Un's visit, North Korea, in this undated picture released by North Korea's Central News Agency (KCNA) on October 23, 2019. North Korean leader Kim Jong Un said South Korea's "backward" and "shabby" facilities at the North's Mount Kumgang resort must be removed and rebuilt in a modern way, state media reported on Wednesday, in the latest sign of cooling relations between the neighbours. KCNA via REUTERS

North Korean leader Kim Jong Un and his wife Ri Sol Ju visit the Yangdok County Hot Spring Resort, North Korea, in this undated picture released by North Korea's Central News Agency (KCNA) on October 23, 2019. North Korea has sent a notice to South Korea to discuss the removal of facilities built by South Korea at the North's Mount Kumgang resort, Yonhap news agency said on Friday. KCNA via REUTERS

North Korean leader Kim Jong Un visits the Yangdok County Hot Spring Resort, North Korea, in this undated picture released by North Korea's Central News Agency (KCNA) on October 23, 2019. North Korean leader Kim Jong Un said South Korea's "backward" and "shabby" facilities at the North's Mount Kumgang resort must be removed and rebuilt in a modern way, state media reported on Wednesday, in the latest sign of cooling relations between the neighbours. KCNA via REUTERS