Flight crew wearing face masks are seen at Ankara Esenboga Airport in Ankara, Turkey, on June 1, 2020. Turkey's airline companies resumed their domestic operations on Monday with a limited number of flights. (Photo by Mustafa Kaya/Xinhua)

Passengers wearing face masks are seen at Ankara Esenboga Airport in Ankara, Turkey, on June 1, 2020. Turkey's airline companies resumed their domestic operations on Monday with a limited number of flights. (Photo by Mustafa Kaya/Xinhua)

Airport staff wearing face masks work at check-in counters at Ankara Esenboga Airport in Ankara, Turkey, on June 1, 2020. Turkey's airline companies resumed their domestic operations on Monday with a limited number of flights. (Photo by Mustafa Kaya/Xinhua)

A passenger disinfects his hands at Ankara Esenboga Airport in Ankara, Turkey, on June 1, 2020. Turkey's airline companies resumed their domestic operations on Monday with a limited number of flights. (Photo by Mustafa Kaya/Xinhua)

A worker disinfects a check-in kiosk at Ankara Esenboga Airport in Ankara, Turkey, on June 1, 2020. Turkey's airline companies resumed their domestic operations on Monday with a limited number of flights. (Photo by Mustafa Kaya/Xinhua)