ISTANBUL, TURKEY - OCTOBER 27: Men fish on the coastline on a foggy morning in Istanbul, Turkey on October 27, 2020. ( Esra Bilgin - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Seagulls fly over a ferry going on Bosphorus on a foggy morning in Istanbul, Turkey on October 27, 2020. ( Esra Bilgin - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A man walks on the coastline on a foggy morning in Istanbul, Turkey on October 27, 2020. ( Muhammed Gencebay Gür - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Women walk on the coastline on a foggy morning in Istanbul, Turkey on October 27, 2020. ( Muhammed Gencebay Gür - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: People walk on the coastline on a foggy morning in Istanbul, Turkey on October 27, 2020. ( Muhammed Gencebay Gür - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Fishing boats are anchored on the shore on a foggy morning in Istanbul, Turkey on October 27, 2020. ( Muhammed Gencebay Gür - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A ferry goes in front of a fishing boat on Bosphorus on a foggy morning in Istanbul, Turkey on October 27, 2020. ( Muhammed Gencebay Gür - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A view of Eminonu district and its surroundings as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Erhan Elaldı - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A view of Eminonu district and its surroundings as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Erhan Elaldı - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A drone photo shows an aerial view of 15 July Martyrs Bridge (formerly named Bosphorus Bridge) as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Metin Pala - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A drone photo shows an aerial view of 15 July Martyrs Bridge (formerly named Bosphorus Bridge) as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Metin Pala - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A drone photo shows an aerial view of 15 July Martyrs Bridge (formerly named Bosphorus Bridge) as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Metin Pala - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Pigeons fly as Ortakoy Mosque, officially the Buyuk Mecidiye Mosque, is seen near Bosphorus while the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: 15 July Martyrs Bridge (formerly named Bosphorus Bridge) is seen as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: A fisherman rows his boat on Bosphorus as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Sun is seen behind the bridge as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Sun is seen behind the bridge as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Ortakoy Mosque, officially the Buyuk Mecidiye Mosque, and a fisherman with a rowboat are seen near Bosphorus as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Emrah Yorulmaz - Anadolu Agency )

ISTANBUL, TURKEY - OCTOBER 27: Ortakoy Mosque, officially the Buyuk Mecidiye Mosque, and a fisherman with a rowboat are seen near Bosphorus as the mist blankets over the city during early morning hours in Istanbul, Turkey on October 27, 2020. ( Emrah Yorulmaz - Anadolu Agency )