Muslim pilgrims, wearing white clothing, arrive at King Abdulaziz International Airport, ahead of the annual Haj pilgrimage, in Jeddah, Saudi Arabia July 17, 2021. Pilgrims arrived in Mecca for the start of the annual haj pilgrimage on Saturday (July 17). REUTERS/Ahmed Yosri

A Muslim pilgrim, wearing a white clothing, walks past a picture of Saudi King Salman bin Abdulazi at King Abdulaziz International Airport, ahead of the annual Haj pilgrimage, in Jeddah, Saudi Arabia July 17, 2021. Saudi Arabia has restricted the haj to its own citizens and residents for the second year running in response to the COVID-19 pandemic. REUTERS/Ahmed Yosri

Muslim pilgrims arrive at King Abdulaziz International Airport, ahead of the annual Haj pilgrimage, in Jeddah, Saudi Arabia July 17, 2021. After arriving into the city in buses, and checking in to receive their ID's, they began the first stage of the haj the tawaf which involves walking around the Kaaba seven times. REUTERS/Ahmed Yosri

Muslims arrive to be taken to the Grand Mosque, ahead of the annual Haj pilgrimage, in the holy city of Mecca, Saudi Arabia July 17, 2021. The Haj pilgrimage will be limited to a maximum of 60,000 participants. REUTERS/Ahmed Yosri

A Muslim pilgrim, wearing a white clothing, takes a selfie in front of an aquarium upon his arrival at King Abdulaziz International Airport, ahead of the annual Haj pilgrimage, in Jeddah, Saudi Arabia July 17, 2021. REUTERS/Ahmed Yosri

Muslims arrive at Al-Zaidi station to be taken to the Grand Mosque, ahead of the annual Haj pilgrimage, in the holy city of Mecca, Saudi Arabia July 17, 2021. REUTERS/Ahmed Yosri