islamabad

An elderly Afghan refugee man walks toward the main road through a muddy slippery track, during a rainfall in a poor neighborhood on the outskirts of Islamabad, Pakistan, Friday, March 28, 2014. For more than three decades, Pakistan has been home to one of the world s largest refugee communities: hundreds of thousands of Afghans who have fled the repeated wars and fighting in their country. Since the 2002 U.S.-led invasion of Afghanistan some 3.8 million Afghans have returned to their home country, according to the U.N. s refugee agency, thousands of them still live without electricity, running water and other basic services.

Muhammed Muheisen/AP

An elderly Afghan refugee man walks toward the main road through a muddy slippery track, during a rainfall in a poor neighborhood on the outskirts of Islamabad, Pakistan. For more than three decades, Pakistan has been home to one of the world s largest refugee communities.

Pakistani women, wash their laundry at a water reservoir, on the outskirts of Islamabad, Pakistan, Thursday, March 20, 2014. The United Nations has proclaimed that March 20 is the International Day of Happiness.

Muhammed Muheisen/AP

Pakistani women, wash their laundry at a water reservoir, on the outskirts of Islamabad, Pakistan. The United Nations has proclaimed that March 20 is the International Day of Happiness.

An Afghan refugee girl, looks at men trying to clear 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, Tuesday, March 11, 2014. For more than three decades, Pakistan has been home to one of the world s largest refugee communities: hundreds of thousands of Afghans who have fled the repeated wars and fighting their country has undergone.

Muhammed Muheisen/AP

An Afghan refugee looks at men trying to clear sewage paths so rainwater can drain, an attempt to avoid flooding during heavy rainfall, in a poor neighborhood on the outskirts of Islamabad, Pakistan. For more than three decades, Pakistan has been home to one of the world’s largest refugee communities.

An Afghan refugee boy reads from the board while he and other schoolchildren attend their classes at their makeshift school on the outskirts of Islamabad, Pakistan, Friday, March 7, 2014.

Muhammed Muheisen/AP

An Afghan refugee reads from the board while he and other schoolchildren attend their classes at a makeshift school on the outskirts of Islamabad, Pakistan

Pakistani students of a madrassa, or Islamic school, some sleeping while others study, in a Mosque in Islamabad, Pakistan, Monday, Feb. 24, 2014. Islamic schools form an important function within the Pakistani educational system, providing for many Pakistanis, the only educational institution they attend.

Muhammed Muheisen/AP

Pakistani students of a madrassa, or Islamic school, sleep while others study in a Mosque in Islamabad, Pakistan. Islamic schools form an important function within the Pakistani educational system, providing for many Pakistanis, the only educational institution they attend.

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’ 

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.