http://www.huffingtonpost.com/2012/0...n_1268905.html
Gives a breakdown of the events. Essentially just rumours at this point.
http://www.reddit.com/r/politics/com...t_kim_jung_un/
Rumours on Reddit are that the Peoples Liberation Army have also entered North Korea. Once again rumours... Coming from Reddit i wouldnt be suprised if it is all false.