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Muslim pilgrims touch a marker at the top of a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2014. The trek to the site is itself the answer to a lifetime of prayers for many Muslims. Hajj is a central pillar of Islam and the pilgrimage is one that all able-bodied Muslims are required to perform once in their lives.(AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

A Muslim pilgrim reads verses from Islam's holy book the Quran on a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. The hajj, a central pillar of Islam and one that able-bodied Muslims must make once in their lives, is a four-day spiritual cleansing based on centuries of interpretation of the traditions of Prophet Muhammad. Women are tasked to look inward rather than on their appearances by giving up perfume, makeup and fitted outfits for long, loose clothing and a headscarf that covers the hair. (AP Photo/Amr Nabil) ( Mideast Saudi Arabia Hajj Photo Essay )

Muslim hajj pilgrims hold umbrellas to protect themselves from the sun prior to performing noon prayers at the Nemra mosque near Mount Arafat on October 14, 2013. Some 1.5 million Muslim pilgrims thronged Mount Arafat in Saudi Arabia for the high point of the annual hajj, praying for an end to disputes and bloodshed. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523771471 )

An Egyptian Muslim pilgrim reads verses from Islam's holy book the Quran in Arafat, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. During the hajj, or pilgrimage, the faithful head to the area of Mount Arafat near a hill called Jabal al-Rahmah, meaning Mountain of Mercy, about 20 kilometers (12 miles) east of Mecca, that Muslims believe the Prophet Muhammad called on people to abolish their feuds and put aside their racial, economic and tribal differences. (AP Photo/Amr Nabil) ( Mideast Saudi Arabia Hajj )

Muslim pilgrims pray on a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. The hajj, a central pillar of Islam and one that able-bodied Muslims must make once in their lives, is a four-day spiritual cleansing based on centuries of interpretation of the traditions of Prophet Muhammad. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

An Egyptian Muslim pilgrim cries as he prays at sunrise on a rocky hill called the Mountain of Mercy, on the Plain of Arafat near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Arabia Hajj )

A Nigerian Muslim pilgrim smiles as he receives an umbrella distributed by a mobile network company during the hajj, or pilgrimage, in Arafat near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. It may be the first and only time many of the pilgrims taking part in hajj ever board a plane or travel abroad. Most come from African, South Asian and Middle Eastern countries where poverty runs high. They have saved for years for this moment, when men are indistinguishable by their wealth or affiliations.(AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Tunisian Muslim pilgrims pray on a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. The hajj, a central pillar of Islam and one that able-bodied Muslims must make once in their lives, is a four-day spiritual cleansing based on centuries of interpretation of the traditions of Prophet Muhammad. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Muslim pilgrims pray on a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Yemeni Muslim pilgrims wear medical masks as they walk in Arafat, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. This year some pilgrims and security personnel are wearing masks as a precaution against the Middle East respiratory syndrome, which has stricken nearly 100 people, most of them in Saudi Arabia and the Middle East. The Saudi health minister, Abdullah al-Rabiah, said late Saturday that no cases of the coronavirus infection have been detected among pilgrims. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Muslim pilgrims pray the noon prayers near fruit carts in Arafat, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. As part of the hajj, or pilgrimage, the faithful head to a hill called Jabal al-Rahmah, meaning Mountain of Mercy, about 20 kilometers (12 miles) east of Mecca, that Muslims believe the Prophet Muhammad called on people to abolish their feuds and put aside their racial, economic and tribal differences. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj )

A Muslim pilgrim wears medical mask as he walks in Arafat near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj )

Muslim pilgrims touch a marker on the top of a rocky hill called the Mountain of Mercy, on the near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Muslim pilgrims prays at sunrise on a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. Countless Muslims have continued that same journey as part of an elaborate and physically demanding set of purification rites known as hajj. Muslims believe the rituals, which start in Mecca and culminate in Mount Arafat, also trace the footsteps of the prophets Abraham and Ishmael.(AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Muslim pilgrims pray on a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

An Indonesian Muslim pilgrim poses for a picture on a rocky hill called the Mountain of Mercy, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Muslim pilgrims raise their hands to receive umbrellas in front of a rocky hill called the Mountain of Mercy, on the Plain of Arafat near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Algerian Muslim pilgrims take pictures on a rocky hill called the Mountain of Mercy, on the Plain of Arafat near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

A Muslim pilgrim touches a marker at the top of a rocky hill called the Mountain of Mercy, on the Plain of Arafat near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2014. (AP Photo/Amr Nabil) ( APTOPIX Mideast Saudi Arabia Hajj )

A Muslim pilgrim chants on a rocky hill called the Mountain of Mercy, during the hajj, near the holy city of Mecca, Saudi Arabia, Monday, Oct. 14, 2013. Men dress in seamless white terrycloth garments meant to symbolize the equality of mankind and a return to God. (AP Photo/Amr Nabil) ( Mideast Saudi Hajj Photo Essay )

Muslim hajj pilgrims perform noon prayers outside the Namira mosque near Mount Arafat on October 14, 2013. Some 1.5 million Muslim pilgrims thronged Mount Arafat in Saudi Arabia for the high point of the annual hajj, praying for an end to disputes and bloodshed. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523771736 )

Muslim pilgrims pray on Mount Arafat, near the holy city of Mecca, ahead of the hajj main ritual, on October 14, 2013. Vast crowds of Muslim pilgrims, all dressed in white, flocked from early in the morning to Mount Arafat in Saudi Arabia's west to take part in the main rituals of the annual hajj. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523766881 )

Muslim hajj pilgrims perform noon prayers outside the Namira mosque near Mount Arafat on October 14, 2013. Some 1.5 million Muslim pilgrims thronged Mount Arafat in Saudi Arabia for the high point of the annual hajj, praying for an end to disputes and bloodshed. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523771730 )

A Muslim pilgrim prays on top of Mount Arafat, near the holy city of Mecca, ahead of the hajj main ritual, on October 14, 2013. Pilgrims in their hundreds of thousands thronged Mount Arafat in Saudi Arabia from early morning for the climax of the annual hajj pilgrimage, arriving on foot, by train or in vehicles. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523767001 )

A Muslim pilgrim prays on top of Mount Arafat, near the holy city of Mecca, ahead of the hajj main ritual, on October 14, 2013. Pilgrims in their hundreds of thousands thronged Mount Arafat in Saudi Arabia from early morning for the climax of the annual hajj pilgrimage, arriving on foot, by train or in vehicles. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523767006 )

Muslim pilgrims arrive at Mount Arafat, near the holy city of Mecca, ahead of the hajj main ritual, on October 14, 2013. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523768118 )

Muslim pilgrims pray at sunrise on top of Mount Arafat, near the holy city of Mecca, ahead of the hajj main ritual, on October 14, 2013. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523768115 )

Muslim pilgrims rest on Mount Arafat, near the holy city of Mecca, ahead of the hajj main ritual, on October 14, 2013. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523768120 )

Muslim pilgrims rest as others climb Mount Arafat (background), near the holy city of Mecca, ahead of the hajj main ritual, on October 14, 2013. AFP PHOTO/FAYEZ NURELDINE/AFP/Getty Images ( 523767881 )