| Now he's not so frustrated. How did they kill him, put a funnel down his mouth and force feed him? |
Choe was last seen in the North's state media last December at the death anniversary of the late leader Kim Jong-Il, South Korea's unification ministry said Wednesday.
Seoul was "closely monitoring the possibility of any changes in Choe's circumstances", said the ministry, which is in charge of cross-border affairs.
Choe's death, if confirmed, would be the second reported this year. Defense minister Hyon Yong-Chol was said to have been executed in April by anti-aircraft fire for insubordination and dozing off during formal military rallies. Such a violent method of execution has been cited in various unconfirmed reports as being reserved for senior officials who the leadership wished to make examples of.
The North has not officially confirmed Hyon's execution -- reported in May by Seoul's intelligence agency -- but announced his replacement, Pak Yong Sik, in July.
Kim, believed to be in his early 30s, has repeatedly reshuffled senior army officials in a move analysts say was aimed at forcing them to remain loyal to the young ruler. The Kim dynasty has ruled the impoverished and isolated North for more than six decades with an iron fist, a pervasive personality cult and almost no tolerance for dissent.