A U.S. intelligence agency is said to have handed over a report to the Korean government that predicts future changes in North Korea in relation to its leader Kim Jong-il's health.

According to diplomatic sources, the report says that even if Kim Jong-il's health deteriorates quickly, the regime will not collapse immediately.

Also, in the case that Kim Jong-il's health worsens slightly, his brother-in-law Jang Song-taek is most likely to take on his role.