SEOUL (Reuters) -North Korean leader Kim Jong Un inspected military industrial factories, calling them to expand production of shells that meet modern warfare needs, state media KCNA said on Saturday.

During the launch ceremony the previous day, North Korean leader Kim Jong Un vowed to rapidly strengthen the country's navy by building two destroyers per year to deter aggression, with the third and fourth ships of the new Choe Hyon class planned for 2026.

North Korea successfully relaunched its 5,000-ton naval destroyer, overseen by Kim Jong Un, after its initial launch failed last month. The warship, one of the largest in North Korea's navy, is believed to be capable of launching nuclear weapons.