Kim Yo Jong, the sister of North Korea's leader Kim Jong Un, participated in a wreath-laying ceremony at the Ho Chi Minh Mausoleum in Hanoi on March 2, 2019. -- AFP file

Kim Yo Jong, the influential sister of North Korean leader Kim Jong Un, cautioned Seoul on Saturday that a 'horrible disaster' could ensue if South Korean drones are detected flying over Pyongyang. She also condemned the South Korean military for its reaction to North Korea's assertion that South Korean drones had breached the capital's airspace, as reported by state media KCNA. On Friday, North Korea's foreign ministry accused South Korea of dispatching drones into Pyongyang during the night this week and last, demanding retaliatory measures. In response, South Korea's Joint Chiefs of Staff stated that they could not verify the North's allegations.

'The fact that the means which carried the leaflets is the very drones is the core of the seriousness of the recent incident,' Kim was quoted as saying, referring to anti-North Korea leaflets. Kim asserted that the responsibility falls on the South Korean military if it fails to identify drones sent by a non-governmental organization crossing the border. North Korea has been releasing thousands of balloons with attached trash into the South since May, intensifying tensions between the two nations. Pyongyang claims these actions are in response to activists and North Korean defectors in South Korea who send balloons into the North carrying aid packages and leaflets criticizing leader Kim Jong Un.