Air Berlin cancels flights as pilots on sick leave
"We are currently recording an unusually high number of sick notes among pilots," a company spokesperson said.
Air Berlin urged affected passengers on its website not to travel to airports and to instead contact its hotline.
German newspaper Bild reported that the cancellations were caused by "a revolt among pilots" over concerns that their jobs would not be saved after Air Berlin was sold.
Air Berlin is the country's second largest airline and employs around 8,600 people. ■