British Airways cancelled flights to Belgrade 3 days ago then I think Swiss Air and Air France did the yesterday.
I remember during the Iraq strike many flights to India were cancelled due to the strike. I know United Airlines cancelled flights to Delhi.
Maybe it is that air space where they have people looking out for you and when they see you they stop shooting and when you are far anuff away they start shotting again.
I think it is called firing practice airspace.
I would love to circle in MCA around that kind of airspace.