North Korea may be building a new and larger type of submarine capable of launching ballistic missiles, a report by a U.S. website that monitors Pyongyang's weapons programs said Friday.
The report, by the influential 38 North blog, highlights growing fears in Tokyo, Seoul and Washington that Pyongyang is moving closer to developing a platform for launching long-range ballistic missiles from submarines.
A ballistic missile that North Korea fired from a submarine on Aug. 24 flew 500 km over the Sea of Japan after a failed test-firing in July. The missile fell into the sea inside Japan's air defense identification zone.