Japan's Defense Minister Kishi Nobuo says peace and security of the region could be threatened if North Korea's report about its new cruise missiles is true.
Kishi spoke to reporters on Tuesday about Pyongyang's media report that its long-range cruise missiles successfully hit targets 1,500 kilometers away in tests over the weekend.
He said he is concerned and that Japan will continue to cooperate closely with the United States and South Korea to monitor the North's military movements.
An expert has noted that if the report about North Korea's cruise missiles traveling 1,500 kilometers is true, most of Japan would be within range and the weapon would be a new threat.
When asked by a reporter whether the threat is rising, Kishi said that because of the nature of the issue, he will refrain from giving assessments on specific information.