North Korea fired at least one short-range ballistic missile from the western city of Nampo toward the Yellow Sea on Thursday, the South Korean military said.The missile launch, detected around 6:20 p.m., comes ahead of a major joint military exercise by South Korea and the United States next week.Seoul's Joint Chiefs of Staff later said it was looking into the possibility of Pyongyang having fired multiple short-range ballistic missiles simultaneously from the Nampo area.The joint drill "Freedom Shield" will take place from Monday through March 23.Seoul's intelligence agency said earlier i…READ FULL ARTICLE