Although the unexpected appearance of North Korean leader Kim Jong Un’s daughter raised speculation that she could be a successor in the making, analysts say it would be an unprecedented uphill struggle in the male-dominated dynasty.

Each change at the top in North Korea has raised the prospect of a leadership vacuum or collapse of the Kim dynasty, which has ruled the country since its founding in 1948.

Kim Jong Un's daughter — who was not named in state media — appeared in coverage of a ballistic missile launch on Saturday, watching the firing and holding her father's hand as he examined the missile. This provided the first official confirmation that Kim has children, and underscored a message that the family is here to stay, analysts said.