An unidentified person sprayed tear gas near the check-in area at the Frankfurt airport at around 11 am local time.
At least six passengers suffered eye irritation and breathing problems. An investigation into the incident is underway.
Firefighters were called to the scene after some passengers complained about breathing problems.
ENTWARNUNG! lt. Feuerwehr Einsatz beendet, 6 Personen leicht verletzt, Ursache unklar; Ermittlungen laufen #Reizgas #Flughafen #Frankfurt
— Bundespolizei Airfra (@bpol_air_fra) 11 сентября 2017 г.
Frankfurt’s police department have given the "All clear!" signal already via Twitter.
