Don't worry folks, it looks like the Mail's aviation correspondent has woken up and has decided to help out in the comments section...
Comment:
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How come it flew to Sofia? If it was only 10mins into the flight then I think there are alot of other airports to fly past to reach Sofia....at least a couple of hours away!! Story doesn¿t make any sense!!!
Comment in reply:
The airports may not have been big enough to land a plane of this size, or have enough fuel if it was required.
This is if course the "go to" newspaper" for many people in the U.K......