Speculation over Kim mystery woman

A mystery woman's appearance with North Korea's young new leader has sparked speculation about her identity.

South Korean media are speculating that the young woman could be Kim Jong Un's younger sister or wife.

North Korean TV on Sunday showed a woman in a black jacket and skirt bowing with Kim at a ceremony marking the 18th anniversary of the death of his grandfather, North Korean founder Kim Il Sung.

She is believed to be the same woman shown on Saturday seated next to Kim at a concert. The North's Rodong Sinmun newspaper today ran a photograph of Kim and the woman on its website.

But North Korea released no details about her.

Little personal information is known about Kim, and even his age has not been announced.