New Delhi, April 9 -- The day after South Korea's military said it detected North Korea firing multiple missiles from an eastern coastal area, North Korea said its testing spree this week involved various new weapons systems, including ballistic missiles armed with cluster-bomb warheads

North Korea's official Korean Central News Agency (KCNA) said the tests, that intended to expand nuclear-capable forces aimed at rival South Korea, lasted three days starting Monday and also included demonstrations of anti-aircraft weapons, purported electromagnetic weapons systems and carbon-fiber bombs.

KCNA said the latest tests included demonstrations of cluster-munition warhead systems mounted on the nuclear-capable Hwasong-11 ballistic missiles, wh...