North Korea's leader Kim Jong Un is apparently losing weight, so quickly that people in that country are worried for him.

That's according to North Korea's tightly-controlled media, and before-and-after videos compiled by Reuters do show he does seem noticeably thinner.

For example, earlier this month North Korean TV aired footage of Kim attending a party meeting, but a different video that's said to be from only about four months earlier in February -- and is shot from the same angles -- shows a different figure.

Foreign analysts had noticed the change several weeks ago and on Sunday (June 27) North Korean TV offered rare segment on Kim's health.