Kim Jong Un's sister says North-South ties at risk

North Korean leader Kim Jong Un's sister has denounced South Korea's president for attending the test-firing of a submarine-launched ballistic missile by his country.

Kim Yo Jong lashed out at South Korean President Moon Jae-in in a statement carried by the state-run Korean Central News Agency late Wednesday.

Moon had said earlier, after witnessing the SLBM test the same day, that by reinforcing its missile capabilities South Korea can present a clear deterrent to the North's provocations.

Kim's statement said in part, "If the president joins in slandering the other party, it will inevitably result in counteractions, which will then be sure to lead to the complete destruction of relations between North and South Korea."

Referring to missiles test-fired by Pyongyang this week, Kim called the launches a "normal self-defense act" and "not a provocation as speculated by South Korea."

At the same time, Kim denied any intention to sour inter-Korean ties further, saying, "We do not want this."