This is a developing story — please check back for updates. Last updated on Jan. 13 at 7:51 a.m. KST.

Days after South Korea said it was monitoring a potential Pyongyang military parade, the North Korean leader’s sister not only implied the event is underway but also ridiculed Seoul for taking a “hostile approach” and having “nothing else to do.”

In a Korean Central News Agency (KCNA) statement circulated on Wednesday, Kim Yo Jong accused Seoul authorities of “craning their neck” to watch Pyongyang and said that they must be “shaking in their shoes.”