North Korea has a secret, previously unreported missile base near its northern border with China, which could pose a “potential nuclear threat” to much of East Asia and the United States, according to a new report released Wednesday.

North Korea is stepping up criticism of South Korea's new President Lee Jae Myung as he prepares for his first summit with U.S President Donald Trump, calling Lee's efforts to engage with Pyongyang a "pipedream".

A California man has been sentenced to eight years in prison after admitting to shipping weapons and ammunition to North Korea that he said were to be used for a surprise attack on South Korea, authorities said Tuesday.