Data show that South Korea has about the same number of men and women in the population, but there is a noticeable shortage of men in North Korea. Why?

According to the latest demographic data on North Korea released by Statistics Korea on Wednesday, the gender ratio in the South stood at 100.3 males for 100 females as of last year but 95.2 to 100 in the North.

That means there were 75,000 more males than females in South Korea's 50 million people, but 604,000 more females than males in North Korea's 24 million.