Flights over North Korea

[aerospace100]

Spotted a 777 cargo flying from NY to Seoul, it flew directly over North Korea. I have been using flight radar for many years and I think this is the first time I have seen a flight over North Korea. The aircraft was US registered. Is it a common flight path? Why did this aircraft not fly around North Korea like the majority of others?

[Columbus Denizen]

What date?
What N #?
Was it JFK to ICN?
I cannot find any previous flights that went over NK.

[aerospace100]

My mistake - it was a black dotted line (estimated coverage) which went over NK. The actual flight path would have taken the aircraft West of NK over Shenyang China.