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.

SEOUL, Aug. 21 (UPI) --North Korea has constructed a secret military base near the Chinese border to hold intercontinental ballistic missiles that pose a "potential nuclear threat" to the United States, a report by the Washington-based Center for Strategic ...