(Seoul) The sister of North Korean leader Kim Jong-un, Kim Yo Jong, has warned that the agreement between the United States and South Korea to strengthen nuclear deterrence against Pyongyang can only lead to “a graver danger”.

Washington and Seoul on Wednesday warned North Korea against any nuclear attack that would prompt a response that would “end” the regime in Pyongyang, during a state visit by the South Korean president to the United States. .

North Korea is convinced of the need to “further perfect” its nuclear deterrent program, countered the very powerful sister of the North Korean leader, Kim Yo Jong, according to remarks reported on Saturday by the North Korean news agency. Korean KCNA.

“The more the enemies insist on holding nuclear exercises, the more they deploy nuclear weapons near the Korean Peninsula, and the more the exercise of our right to self-defense will be in direct proportion,” said Kim Yo Jung.

South Korean President Yoon Suk Yeol and his US counterpart Joe Biden on Wednesday adopted the “Washington Declaration”, which significantly strengthens their cooperation in defense matters, including nuclear.

Among the measures decided under this agreement is the stopover of a nuclear-powered ballistic missile submarine in South Korea for the first time in four decades.

This agreement will “only contribute to putting peace and security in Northeast Asia and the world at greater risk, and therefore it is an action that can in no way be welcomed”, continued Kim Yo. Jong.

North Korea has braved years of international sanctions to continue its development of nuclear and missile programs, and has shown no sign of being ready to abandon its arsenal which it sees as insurance against any attempt to reversal of the regime.

Pyongyang has conducted a record series of launches this year, including a test of its first solid-fuel ballistic missile, a key technological breakthrough for Kim Jong-un’s armed forces.