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An Afghan refugee, Hamagai Akbar, 5, attends an event on the occasion of U.N. World Day Of Social Justice, at a makeshift school set up in a mosque on the outskirts of Islamabad, Pakistan, Thursday, Feb. 20, 2014. According to the U.N. website, the occasion aims to support efforts for "poverty eradication, the promotion of full employment and decent work, gender equity and access to social well-being and justice for all." (AP Photo/Muhammed Muheisen)

Muhammed Muheisen/AP

An Afghan refugee, five-year-old Hamagai Akbar, attends an event on UN World Day of Social Justice, at a makeshift school set up in a mosque on the outskirts of Islamabad, Pakistan. The UN says the occasion aims to support efforts for ‘poverty eradication, the promotion of full employment and decent work, gender equity and access to social well-being and justice for all’ Read more

Pakistani men, who were displaced with their families from Pakistan's tribal areas due to fighting between the Taliban and the army, clear open sewage paths so rainwater can drain, in an attempt to avoid flooding during a heavy rainfall, in a poor neighborhood on the outskirts of Islamabad, Pakistan, Monday, Feb. 3, 2014.

Muhammed Muheisen/AP

Pakistani men clear open sewage paths in a poor neighbourhood on the outskirts of Islamabad, Pakistan, in an attempt to avoid flooding. The men and their families have been displaced from tribal areas because of fighting between the Taliban and the army.

Dressed in a burqa, a Pakistani child, whose family was displaced from Pakistan's tribal areas due to fighting between the Taliban and the army, stands outside a mosque, where children heir daily Madrassa, or Islamic school, on the outskirts of Islamabad, Pakistan, Tuesday, Jan. 28, 2014.

Muhammed Muheisen/AP

Dressed in a burka, a Pakistani child, whose family was displaced from Pakistan’s tribal areas due to fighting between the Taliban and the army, stands outside a mosque, where children hold daily Madrasa, or Islamic school, on the outskirts of Islamabad, Pakistan

Sakina waits for a teacher to recite verses from the Quran during religion class at a local mosque in Islamabad, Pakistan, Thursday, Dec. 19, 2013. Religious schools in Pakistan mostly set up in mosques are potential source of education for thousands of children.

B.K. Bangash/AP

Sakina waits for a teacher to recite verses from the Koran during religion class at a local mosque in Islamabad, Pakistan. Religious schools in Pakistan mostly set up in mosques are potential source of education for thousands of children.

A Pakistani woman walks out of her home carrying her child towards a health worker to be vaccinated against polio in Islamabad, Pakistan, Monday, Nov. 25, 2013. On Saturday, militants kidnapped four school teachers who were working on a polio vaccination drive in Khyber's Sipah village, said local government official Khurshid Khan. Negotiations are underway for their release, he said. Militants have killed over a dozen polio workers and police protecting them over the last year and they claim the workers are spies and the vaccination is meant to make Muslim children sterile.

Muhammed Muheisen/AP

A woman in Islamabad, Pakistan, takes her child to a health worker to be vaccinated against polio. More than a dozen polio vaccine workers have been killed by militants in the past year in the country. They claim the workers are spies and the vaccination is intended to make Muslim children sterile.

Pakistani youth, Daniel Rahmat, 12, who works as a street barber, sits on his chair waiting for customers, on the outskirts of Islamabad, Pakistan, Thursday, Nov. 7, 2013.

Muhammed Muheisen/AP

Street barber Daniel Rahmat, 12, waits for customers on the outskirts of Islamabad, Pakistan.

An Afghan refugee youth, sits on the side of the alley of a poor neighborhood, on the outskirts of Islamabad, Pakistan, Tuesday, Oct. 29, 2013. Pakistan hosts over 1.6 million registered Afghans, the largest and most protracted refugee population in the world, according to the U.N. refugee agency, thousands of them still live without electricity, running water and other basic services.

Muhammed Muheisen/AP

A young Afghan refugee sits on the side of an alley in a poor neighbourhood on the outskirts of Islamabad, Pakistan.

A Pakistani girl comforts her brother near her family's makeshift tent in a slum in Islamabad, Pakistan, Monday, Oct. 21, 2013. Slums, which are built on illegal lands, have neither running water or sewage disposal.

Muhammed Muheisen/AP

A girl holds her brother near her family’s makeshift tent in a slum in Islamabad, Pakistan

An Afghan refugee child sits on roadside in a poor neighborhood on the outskirts of Islamabad, Pakistan, Monday, Oct. 14, 2013. Pakistan hosts over 1.6 million registered Afghans, the largest and most protracted refugee population in the world, according to the U.N. refugee agency, thousands of them still live without electricity, running water and other basic services.

Muhammed Muheisen/AP

An Afghan refugee child sits on the roadside on the outskirts of Islamabad, Pakistan. Pakistan hosts more than 1.6m registered Afghans, the largest and most protracted refugee population in the world, according to the UN refugee agency, Thousands of refugees still live without electricity, running water and other basic services.

Pakistani boy, Saad Imran, 6, walks his painted sheep back home, to be slaughtered  on the upcoming Muslim holiday of Eid al-Adha, or "Feast of Sacrifice," in Islamabad, Pakistan, Friday, Oct. 11, 2013. Marks on the sheep reads, Eid, or "Feast, " referring to the holiday.

Muhammed Muheise/AP

Saad Imran, aged 6, on Friday walks his sheep home to be slaughtered on the upcoming Muslim holiday of Eid al-Adha in Islamabad, Pakistan.