According to North Korean state television's official report on Monday, Kim passed away from "mental and physical strain" during a train ride on December 17, 2011. 
Kwa mujibu wa taarifa rasmi iliyotolewa Jumatatu , kupitia runinga ya taifa, Kim alifariki kwa sababu ya “uchovu wa kiakili na kimwili” wakati akisafiri kwa gari moshi mnamo tarehe 17 Desemba, 2011.