Kim Jong-un's wife reported to be expecting another child

The wife of North Korean leader Kim Jong-un is said to be pregnant.

Photographs have emerged of Ri Sol-ju wearing the same loose-fitting clothing as she wore in late 2012 before her first child.

The couple already have a daughter, while Kim is also thought to have a daughter from a previous relationship.

Analysts believe Kim is anxious to have a son, in order to maintain the ruling dynasty founded by his grandfather in 1948.