Kim Chang-son, an important advisor to North Korean dictator Kim Jong-un and chief of protocol, has passed away, and the North Korean leader has expressed condolences.

The official news agency did not provide details about the cause or date of his death. Kim Jong-un sent a wreath to be placed next to the coffin and expressed 'sincere condolences'. Kim Chang-son was a prominent figure, serving as the de facto chief of staff to the North Korean leader, frequently accompanying him at international meetings, including with Donald Trump. He also held an important government position during the tenure of Kim Jong-un's father, Kim Jong-il.