Unconfirmed reports say North Korean leader Kim Jong-un has lost yet another relative who apparently died while arguing with him on the phone.

A defector from the Hermit Kingdom has claimed Kim's aunt suffered a stroke during a row about plans to execute uncle Jang Song Thaek

Auntie Kim Kyung Hee, aged 68, was married to Thaek, who fell foul of the young dictator last year during a purge of Kim's inner circle.

Thaek's execution for plotting immediately threw in to doubt her own position.

But uncertainty surrounds the fate of Hee. Another defector has claimed previously she committed suicide following her husband's execution because "she could not go on."