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Saudi police use security cameras during Hajj in Mecca

Fayez Nureldine / AFP - Getty Images

Saudi police officers monitor screens connected to cameras, at the Command and Control Center in Mina, outisde the holy city of Mecca, on November 7, 2011, as millions of Muslim pilgrims take part in the annual hajj.

Fayez Nureldine / AFP - Getty Images

An aerial view shows Muslim pilgrims walking around the Kaaba in the Grand Mosque in the holy city of Mecca during the annual Hajj pilgrimage rituals on November 7, 2011.

 Read more about the CCTV camera system used at Hajj.