What happened
During a nighttime intruder mission conducted between Pyongyang and Haeju, an aircraft disappeared from communications. The final contact with the crew was recorded at 0032LT. Following the loss of signal, the aircraft crashed, resulting in a large explosion at the impact site.
The incident involved a crew of four members. Of the personnel on board, two fatalities were confirmed, while two survivors were successfully rescued from the wreckage.
Findings
No specific technical cause for the crash was detailed in the available reports, though the destruction of the aircraft was characterized by a significant explosion upon impact.