North Korean leader Kim Jong Un mocks President Yoon by saying he is ”not sane,” to which the Defense Ministry says it ”cannot tolerate” - South Korean media

On the 4th, the South Korean Ministry of National Defense stated that the criticism made by North Korean siblings Kim Jung Eun and Kim Yo Jong against the commemorative event for the 76th anniversary of the founding of the South Korean Armed Forces, "is absolutely unacceptable behavior."
The Ministry of National Defense said in a statement on the same day, "Unlike in the past, North Korea has singled out South Korea's weapons system and strategic command in detail during this Armed Forces Day event, which is indicative of the fact that this is the first time that North Korea has criticized South Korea's weapons system and strategic command in this Armed Forces Day event."
"All of these are directly related to the North Korean leadership," he said, emphasizing that the move is an expression of frustration and anxiety due to the strong capabilities and firm posture of the South Korean military.
At the same time, "North Korea has nothing to gain from developing nuclear weapons and missiles, and
"North Korea will realize that the path to the end of its regime is to develop nuclear weapons and missiles and bring about impoverished isolation, and will not seek peace on the Korean Peninsula," he warned.
"We strongly urge the DPRK to cease all acts that undermine stability," he said. Chairman Kim Jung Eun inspected a training base for the special operations forces on the 2nd of this month and attended the South Korean "
He criticized President Yoon Seok-yol for his commemorative speech at the Armed Forces Day event, in which he mentioned the "end" of the North Korean regime. He said President Yoon's speech was "a message to break away from the anti-Republic obsession from beginning to end."
"It is a lengthy speech that is the result of a victim mentality towards our Republic," he said, pointing out that "this is an expression of their security anxiety and frustration."
They even mocked him, saying, "Maybe he's not a normal person."