U.S. Republican presidential candidate Donald Trump's proposal to meet North Korean leader Kim Jong-un is a "kind of propaganda or advertisement" in the election race, a senior North Korean official said on Monday. But he added: "As a responsible nuclear state, we keep and observe the obligations of non-proliferation of nuclear technology." China and Russia backed the idea, but the United States and its allies South Korea and Japan reject it, he said. "If the United States use their nuclear weapons first, then we have to use also that one." "As a responsible nuclear state ... we never use them first," So said.

Source: CBC News May 23, 2016 15:52 UTC