It could be true. It could not be true. We as a people should raise our standards concerning media.
There are very few information sources that aren't biased. We have none in this country. I think BBC has been pretty good, but I'm not sure.
There have been more than enough documented incidents to come out of North Korea over the last few decades that would make this report completely legitimate.
If you choose to not believe or distrust the reports that come out of the country then fine, but I will believe what I choose to believe.