Thanks, you have more here https://www.freerepublic.com/focus/news/3807314/posts?page=60#60
The air defence crew, probably afraid of being targeted by American aircrafts (the sensors in modern fighter planes are powerful enough to identify the SAM from extremely far away), pressured by the heighten tensions (their government just launched ballistic missiles on a superpower), protecting a missile base (high target after a ballistic missile attack) and relying on limited sensors capabilities were unable to identify the aircraft on time, only seeing an unidentified target coming towards them and failing to take in consideration that an international airport was present which leads us to question, was the crew even notified of the airspace still being open to civilian traffic, or was there an internal memo that superseded such facts ? Chances are that, the ground crew, pushed the fire button before properly identifying the aircraft, closing on them, driven by fear, pressure, internal communication failure and most definitely lack of training.