Don't know if mentioned before.
Police on high alert in Stuttgart (Germany) Airport. The airport check-in procedures said to have been "spied out" (whatever that means).
https://www.swp.de/suedwesten/bericht_-stuttgarter-flughafen-wohl-zweimal-ausgespaeht-28800344.html
https://twitter.com/bpol_bw/status/1075482834188537858