Berlin: Frankfurt Airport said it will cancel or divert all incoming flights to the airport after an IT system failure at Lufthansa forced the airline to cancel dozens of flights on Wednesday.

German air traffic controllers said Lufthansa aircrafts could no longer depart from Frankfurt Airport and were parked there, meaning no parking positions were available for other aircraft.

Photos and videos from several airports across Germany showed chaos with thousands of stranded passengers waiting to be checked in.

Shares in Lufthansa were down 1.2% at 0936 GMT.