Kim's sister warns that ‘'repeated intrusion' will result in very critical flight' for the US military

Voice 9, International Desk:  North Korean leader Kim Jong-un’s sister threatened the US military on Tuesday with a "very critical flight" in the event of a "repeated illegal intrusion," the latest in a series of threats about US spy planes reportedly violating its airspace.

Kim Yo-jong's warning, reported by the North's official Korean Central News Agency, came only hours after she made a statement late Monday saying that a US spy plane had crossed North Korea's exclusive economic zone earlier that day.

"I have already informed our army's counteraction in advance of authorization." "If there is another illegal intrusion, the US forces will be in for a very dangerous flight," Kim stated in an English-language dispatch released by the KCNA.

Earlier Monday, a North Korean defense ministry spokeswoman accused US spy planes of lately breaching its airspace, saying that such planes would be shot down.

In the latest statement, Kim claimed that US reconnaissance aircraft intruded into the "economic water zone" to commit what she called an "aerial espionage act." She said US surveillance flights encroached on the North's sovereignty.

Meanwhile, in her latest speech, Kim used South Korea's full name, the Republic of Korea, a change from the North's long-standing reference to the South as "south Korea" or "the South Korean puppet."