A prominent U.S. expert said Wednesday that President Donald Trump's recent reference to North Korea as a "nuclear power" appears to be a "realistic" view of North Korean threats following a look at how the security challenge has evolved.

North Korea’s state media reported on Donald Trump’s inauguration in its first direct acknowledgement of his return to the White House and adopted a neutral tone without referencing the president’s characterization of Pyongyang as a “nuclear power.

North Korean leader Kim Jong Un has inspected a facility that produces nuclear material and called for bolstering the country’s nuclear capability, state media reported Wednesday, as the North looks to increase pressure on the United States following the inauguration of U.

North Korean leader Kim Jong Un visits the country's nuclear material production base and nuclear weapons institute, at an undisclosed location in North Korea, in this photo released by North Korea's official Korean Central News Agency on January 29,