Millions of Muslims have gathered at Mount Arafat near Mecca in Saudi Arabia to observe the Day of Arafah.
The Day of Arafah is a significant day of the Hajj pilgrimage and a holy day in Islam. This year, it fell on Sunday, June 16.
Arafat, a vast open area east of Mecca, becomes filled with pilgrims wearing seamless white garments, symbolizing unity and equality before God.
The Day of Arafah is a day of prayer, reflection, and seeking forgiveness.
Here are some photos depicting pilgrims chanting prayers at the camp established by Iran's Hajj mission.
Eid al-Adha, or the Feast of Sacrifice, follows the Day of Arafah.
It is the second major Muslim festival after Eid al-Fitr.
AG/AG