Workers wearing masks are seen outside a restaurant in Istanbul, Turkey, on July 1, 2020. Turkish Health Minister Fahrettin Koca said on Wednesday that the past week's new COVID-19 cases in Istanbul, the largest metropolis in Turkey, accounted for 54 percent of all the increase across the country. (Xinhua/Xu Suhui)

A chef wearing a mask works in a restaurant in Istanbul, Turkey, on July 1, 2020. Turkish Health Minister Fahrettin Koca said on Wednesday that the past week's new COVID-19 cases in Istanbul, the largest metropolis in Turkey, accounted for 54 percent of all the increase across the country. (Xinhua/Xu Suhui)

People wearing masks do shopping at a market in Istanbul, Turkey, on July 1, 2020. Turkish Health Minister Fahrettin Koca said on Wednesday that the past week's new COVID-19 cases in Istanbul, the largest metropolis in Turkey, accounted for 54 percent of all the increase across the country. (Xinhua/Xu Suhui)

People wearing masks are seen on a street in Istanbul, Turkey, on July 1, 2020. Turkish Health Minister Fahrettin Koca said on Wednesday that the past week's new COVID-19 cases in Istanbul, the largest metropolis in Turkey, accounted for 54 percent of all the increase across the country. (Xinhua/Xu Suhui)