Pyongyang, December 19 (KCNA) -- Leader Kim Jong Il had received medical treatment for his cardiac and cerebrovascular diseases for a long period.

He suffered an advanced acute myocardial infarction, complicated with a serious heart shock, on train on December 17, Juche 100 (2011) for a great mental and physical strain caused by his uninterrupted field guidance tour for the building of a thriving nation.

Every possible first-aid measure was taken immediately but he passed away at 08:30 on December 17.

An autopsy on December 18 fully confirmed the diagnosis of his diseases.