Reuters: North Korean missiles launched over Ukraine have become more accurate.

North Korean ballistic missiles fired at Ukraine by Russian forces since late December have been far more accurate than salvos fired over the past year, two senior Ukrainian sources told Reuters. At a time when Moscow's increasingly close ties with Pyongyang are causing concern from Washington to Seoul, the increased accuracy - within 50-100 meters of the intended target - suggests North Korea is successfully using the battlefield to test its missile technology.