Seems a bit extreme to me!
http://news.yahoo.com/north-korea-executes-defense-chief-treason-charges-south-005116364.html
The U.S.-based Committee for Human Rights in North Korea said last month that, according to satellite images, the range was likely used for an execution by ZPU-4 anti-aircraft guns in October. The target was just 30 meters (100 feet) away from the weapons, which have a range of 8,000 meters, it said.
http://news.yahoo.com/north-korea-executes-defense-chief-treason-charges-south-005116364.html