More strange goings on!
"All flights to and from Amsterdam’s Schiphol Airport have been suspended due to a technical issue with air traffic control systems which is preventing flights from leaving or arriving.
The problem began shortly after 1pm local time, the ANP news agency is reporting. The airport's website currently shows only two inbound flights as delayed."
https://www.rt.com/news/436010-system-meltdown-halts-all-flights/