We're talking about pilots, airport personel, and police, who have been reporting several drone sightings over a long period, and are continuing to report drone

We're talking about pilots, airport personel, and police, who have been reporting several drone sightings over a long period, and are continuing to report drone sightings (the runway is still closed because drones are still being seen despite the area now teeming with police). Seems to me to be as reliable as can be. There have been many previous incidents and the occurrence is increasing. This seems to be the major one that is going to shake things up.