North Korea General Secretary Kim inspects shipyard and orders modernization of ships and equipment. Kim said, ``Strengthening the navy is the most important step in protecting maritime sovereignty and preparing for war'' South Korean intelligence agencies are on alert, pointing out that North Korea stole ship design materials such as drawings from a South Korean shipbuilding company in a cyber attack between August and September last year.

I'm telling you that there is a possibility that this may be the case, says South Korean official.