North Korea on Thursday unleashed an insult-laden diatribe against Prime Minister Shinzo Abe, calling him an "idiot and villain" who should not even dream of setting foot in Pyongyang, and hinted at the possibility of missiles again flying over Japan after Abe criticized a recent weapons test by the North.

In a statement attributed to Song Il Ho, the North Korean ambassador for normalization talks with Japan, blasted Abe as reacting "as if a nuclear bomb was dropped on the land of Japan" to what the North described as a test-firing of rocket artillery last week.

Song also took aim at Abe's expressed willingness to meet North Korean leader Kim Jong Un, saying he would be "well-advised not to dream forever of crossing the threshold of Pyongyang," after insulting the North's "just measures" for self-defense.