North Korea has developed an improved missile with a range of 180-300 km based on the Chinese Silkworm ground-to-ship missile."Since 2003, the North has kept testing the new KN-01 ground-to-ship missile," a government source here said Thursday. "It has now completed an improved version and deployed such missiles in South Hwanghae Province."
Until recently the KN-01 was believed to have a range of 160 km, meaning the North has managed to nearly double the range, making it easier to target South Korean ships in the West Sea.