SEOUL: North Korea has unveiled the little-known daughter of its leader Kim Jong Un at a missile launch site, attracting keen attention to a fourth-generation member of a dynastic family that has ruled the isolated East Asian nation for more than seven decades.

The North's state media said on Saturday that Kim had observed the launch of its new type of intercontinental ballistic missile with his wife Ri Sol Ju, their 'beloved daughter' and other officials the previous day. Kim said the launch of the Hwasong-17 missile — the North's longest-range, nuclear-capable missile — proved he has a reliable weapon to contain U.S.-led military threats.