PILOTS reported seeing ‘a white, square-shaped object’ almost directly in their path in a harrowing near-miss 6000ft above Potters Bar, Herts, in February.
http://www.dronestagr.am/blog/ba-flight-carrying-300-passengers-comes-within-just-20ft-of-illegal-drone-flying-at-6000ft-after-take-off-the-sun/