Muslim pilgrims offer prayers at the Mountain of Mercy during the annual Hajj pilgrimage. (AP)

A Muslim pilgrim offers prayers at the Mountain of Mercy during the annual Hajj pilgrimage. (AP)

Muslim pilgrims gather at top of the Mountain of Mercy during the annual Hajj pilgrimage. (AP)

Muslim pilgrims gather at top of the Mountain of Mercy during the annual Hajj pilgrimage. (AP)

Muslim pilgrims gather at top of the Mountain of Mercy during the annual Hajj pilgrimage. (AP)

Muslim pilgrims gather at top of the Mountain of Mercy during the annual Hajj pilgrimage. (AP)

Muslim pilgrims gather at top of the Mountain of Mercy during the annual Hajj pilgrimage. (SPA)

Muslim pilgrims on their way to for the second day of their ritual at Mount Arafat, known as the hill of mercy, which is considered the peak of the Hajj pilgrimage. (SPA)

Muslim pilgrims on their way to for the second day of their ritual at Mount Arafat, known as the hill of mercy, which is considered the peak of the Hajj pilgrimage. (SPA)

A young Muslim pilgrim gives the thumbs up sign while her way for rituals at Mount Arafat, known as the hill of mercy, which is considered the peak of the Hajj pilgrimage. (SPA)