Seoul: Increased vehicle movement at North Korea's missiles research centre

SEOUL, Korea, Republic Of -- South Korea's military said Thursday it is carefully monitoring North Korean nuclear and missile facilities after the country's spy agency told lawmakers that new activity was detected at a research centre where the North is believed to build long-range missiles targeting the U.S. mainland. Defence Ministry spokeswoman Choi Hyun-soo said the U.S. and South Korean militaries are closely co-ordinating intelligence over the developments at the North's missile research c