Seoul, Muharram 24, 1433, Dec 19, 2011, SPA - North Korean leader Kim Jong Il, has died, state media reported Monday. Kim died Saturday of a heart attack brought on by "great mental and physical strain" during a train tour, the Korean Central News Agency said. According to his official biography, he was 69. His third and youngest son, Kim Jong Un, was called the "great successor" in a government message distributed by KCNA a short time after the announcement of the elder Kim's death. --SPA 11:52 LOCAL TIME 08:52 GMT www.spa.gov.sa/953848