Peshawar

A Pakistani paramilitary soldier stands guard beside a burning pile of seized drugs during a ceremony to mark International Day against Drug Abuse and Illicit Trafficking on the outskirts of Peshawar on June 26, 2014. Pakistan's war-torn neighbour Afghanistan is the world's largest producer of opium, the raw material for heroin. Efforts to cut production have failed in the 13 years since US-led forces toppled the Taliban regime there. More than 45 percent of Afghanistan's illicit opiates pass through Pakistan on their way to markets in Europe and Asia, according to the UN Office on Drugs and Crime.

A Majeed/AFP

A Pakistani paramilitary soldier stands guard beside a burning pile of seized drugs during a ceremony to mark International Day Against Drug Abuse and Illicit Trafficking on the outskirts of Peshawar on Thursday

Pakistani Christian worshippers, some of them who survived Sunday's suicide bombing, pray during a special mass for the victims of the bombing, at the Church where the attack took place, in Peshawar, Pakistan, Monday, Sept. 23, 2013. Angry Pakistani Christians denounced the deadliest attack ever in this country against members of their faith. A pair of suicide bombers blew themselves up amid hundreds of worshippers outside a historic church in northwestern Pakistan.

Muhammed Muheisen/AP

Pakistani Christian worshippers, some of them who survived Sunday’s suicide bombing, pray during a special mass for the victims of the bombing, at the Church where the attack took place, in Peshawar, Pakistan on Monday. Angry Pakistani Christians denounced the deadliest attack ever in this country against members of their faith. A pair of suicide bombers blew themselves up amid hundreds of worshippers outside a historic church in northwestern Pakistan.

Supporters wave towards a helicopter transporting Sharif, leader of political party PML-N, as he leaves after his election campaign rally in Peshawar

Fayaz Aziz /Reuters

Supporters wave goodbye to Nawaz Sharif, leader of the Pakistan Muslim League-Nawaz (PML-N), as he leaves by helicopter after his election campaign rally in Peshawar on Tuesday. Pakistan’s general elections are to be held on May 11

A Pakistani boy suffering from Measles lies asleep after getting vaccinated at a medical camp in Peshawar, Pakistan, 26 April 2013. Pakistani health authorities were scrambling to vaccinate thousands of children across the country after a measles outbreak. Measles was suspected to be the main cause for dozens of deaths last year in Sindh, Punjab, Balochistan and Khyber Pakhtunkhwa provinces, with most children dying because of post-measles complications, including pneumonia and diarrhea, according to media report.

Arshad Arbab/EPA

A Pakistani boy suffering from Measles lies asleep after getting vaccinated at a medical camp in Peshawar, Pakistan, on Friday. Pakistani health authorities were scrambling to vaccinate thousands of children across the country after a measles outbreak. Measles was suspected to be the main cause for dozens of deaths last year in Sindh. Read more