The rogue state said it would “never pardon” the USA and South Korea, who they claimed were working together to bring down North Korea.
A fiery editorial in a Pyongyang-based newspaper said America’s new Korean “mission centre” and South Korea’s new “eavesdropping” plane could lead to war.
The propaganda rag said: “Such moves are another unpardonable provocation aimed to "overthrow the social system" of the DPRK and ignite a war for aggression on it.
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“Their desperate moves cannot prove effective in the face of the invincible might of the DPRK. Eventually, they came to resort to the sinister scheme with hope pinned on the espionage against the DPRK.
“The espionage serves as an open hostile act against the opposite side and a prelude to war provocation.”
In response, the article said, North Korea would “root out” their enemies, who they described as “the most wicket and brutal in the world”.
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The piece concluded: “The DPRK will never pardon in the least the provokers who dare go reckless to do harm to the inviolable sovereignty and dignity of the DPRK while getting engrossed in the despicable acts of espionage.
“The Korean-style war on terrorism will be conducted in a consecutive and intensive way to root out the plot-breeding machines of the U.S. imperialists and the puppet group of traitors who are the most wicked and brutal in the world.”
The piece was published just days after North Korea mocked Donald Trump, telling the US president: “Don’t dream silly dream!”
A statement said America was "a den of devils" which must be "wiped off the face of the earth".