The massive hajj pilgrimage is coming to a close on the final day of the Eid al-Adha festival. The last day also marks the symbolic "stoning of the devil" ritual, in which about 2 million Muslims travel to the Saudi Arabian city of Al-Jamarat to throw pebbles at a wall representing the devil. An estimated 2.5 million worshipers have gathered at Mecca, and Saudi Arabia is deploying some 63,000 security forces to prevent violent incidents from erupting.