Stage set for successor to Kim Jong-Il in N Korea

North Korea's ruling party will hold its first conference in a generation on 28 September, state media reports say, amid speculation that leader Kim Jong-il is about to name his successor.

The Workers Party is widely expected to promote Mr Kim's third son, Kim Jong-un, to a senior position.

Observers believe a promotion would anoint him as the heir to his father, the self-styled Dear Leader.

John Sudworth reports from Seoul, in South Korea.