The young North Korean leader will now rule without a relative long considered his mentor as he consolidated power after the death of his father, Kim Jong Il, two years ago.
Jang Song Thaek's fall from the leadership, detailed in a lengthy dispatch by state media, is the latest and most significant in a series of personnel reshuffles that Kim has conducted in an apparent effort to bolster his power.
Tensions are still high on the Korean Peninsula following a torrent of threats in March and April by Kim Jong Un's government against Washington, Seoul and Tokyo, including vows of missile and nuclear strikes and warnings that Pyongyang would restart nuclear bomb fuel production.
South Korean intelligence officials said days ago that a purge was likely because two of Jang's aides had been executed last month for corruption. A recent state documentary in the North had all images of Jang removed.
Jang was described as "abusing his power," being "engrossed in irregularities and corruption," and taking drugs and squandering money at casinos while undergoing medical treatment in a foreign country. It also said he had "improper relations with several women and was wined and dined at back parlors of deluxe restaurants."
The decision to strip Jang of all posts and titles and expel him from the ruling Workers' Party was made at a Political Bureau meeting of the party's Central Committee on Sunday. The dispatch also indicated that the purge would extend to supporters of Jang in official posts, but did not provide details
