CNN:

(CNN) -- North Korean leader Kim Jong Il is dead, North Korean state TV said Monday.
Kim, 69, died at 8:30 a.m. Saturday, state TV said.

A broadcaster reported that Kim died due to "overwork" after "dedicating his life to the people."
Kim died of "great mental and physical strain" while in a train during a "field guidance tour," North Korea's state-run KCNA news agency reported.