Photo taken on April 12, 2020 shows empty highways under a curfew in Ankara, Turkey. The total number of COVID-19 cases in Turkey has risen to 56,956 with 4,789 new ones reported in the last 24 hours, Turkish Health Minister Fahrettin Koca said Sunday. (Photos: Xinhua)

Photo taken on April 12, 2020 shows an empty highway under a curfew in Ankara, Turkey. The total number of COVID-19 cases in Turkey has risen to 56,956 with 4,789 new ones reported in the last 24 hours, Turkish Health Minister Fahrettin Koca said Sunday.

Photo taken on April 12, 2020 shows empty highways under a curfew in Ankara, Turkey. The total number of COVID-19 cases in Turkey has risen to 56,956 with 4,789 new ones reported in the last 24 hours, Turkish Health Minister Fahrettin Koca said Sunday.

Photo taken on April 12, 2020 shows empty highways under a curfew in Ankara, Turkey. The total number of COVID-19 cases in Turkey has risen to 56,956 with 4,789 new ones reported in the last 24 hours, Turkish Health Minister Fahrettin Koca said Sunday.

Photo taken on April 12, 2020 shows an empty road under a curfew in Ankara, Turkey. The total number of COVID-19 cases in Turkey has risen to 56,956 with 4,789 new ones reported in the last 24 hours, Turkish Health Minister Fahrettin Koca said Sunday.

Security personnel patrol on a street under a curfew in Ankara, Turkey, on April 12, 2020. The total number of COVID-19 cases in Turkey has risen to 56,956 with 4,789 new ones reported in the last 24 hours, Turkish Health Minister Fahrettin Koca said Sunday.