ISTANBUL, TURKIYE - MAY 29: People gather to attend a religious ceremony within the celebrations during the commemoration of 570th anniversary of Ottoman conquest of Istanbul at Hagia Sophia Grand Mosque in Istanbul, Turkiye on May 29, 2023. Istanbul Governor Ali Yerlikaya and Istanbul Provincial Mufti Safi Arpagus also attended commemoration ceremony. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM