Could North Korea have a new First Lady?

A mystery woman seen attending events with North Korea's Kim Jong-un has led to speculation in South Korean media about her identity.

The woman was shown on state TV on Sunday with the new leader at an official ceremony in honour of his late grandfather, Kim Il-sung.

And on Saturday, the same woman was seen sitting next to Kim Jong-un at a concert.

The appearances have made front-page news in South Korea.

Catharina Moh reports.