Nobody knows the truth, but the only fact of his death has spread all over the world.
According to the state media, North Korean leader Kim Jong-Il has died of a heart attack on the train at the age of 69.
Millions of North Koreans poured into the streets to mourn his death.
His body has been laid in state in a glass coffin.
It's just like a scene of Japanese film "20th Century Boys".
The state media described one of his sons, Kim Jong-Un, as the "great successor" whom North Koreans should unite behind.
For better or worse, it must be a turning point for North Korea and the world as well.