BERLIN, Feb. 13 (Xinhua) -- Operations at Germany's Cologne Bonn Airport were suspended on Friday following a failure of the passenger security screening system, German public broadcaster WDR reported.

Passengers pass security checkpoint at Terminal 2 building of the Shanghai Pudong International Airport in east China's Shanghai, November 24, 2020. (File photo: Xinhua)

Police said there was a security incident, although they declined to provide further details. It remains unclear how long the disruption would last.