(German only, but you could use Google translate):

https://www.n-tv.de/der_tag/Frau-hae...ruestung-fuer-
Maschinengewehr-Grosseinsatz-am-Flughafen-article22408522.html

Happened yesterday near Frankfurt airport and the result was a
major police operation.
The photographers were plane spotters. The police said that some
of their lenses "were very long".
Perhaps they were using full frame cameras, where tele lenses
can sometimes be really big.

--
Alfred Molon

Olympus 4/3 and micro 4/3 cameras forum at
https://groups.io/g/myolympus
https://myolympus.org/ photo sharing site