A health worker counts used vials of Sinopharm's coronavirus disease (COVID-19) vaccine, at a vaccination centre in Karachi, Pakistan April 28, 2021. REUTERS/Akhtar Soomro

People gather to receive their coronavirus disease (COVID-19) vaccine doses, at a vaccination center in Karachi, Pakistan April 28, 2021. REUTERS/Akhtar Soomro

A man receives a dose of the coronavirus disease (COVID-19) vaccine, at a vaccination center in Karachi, Pakistan April 28, 2021. REUTERS/Akhtar Soomro

Ruqaiya, 70, reads a religious book while waiting to receive her dose of coronavirus disease (COVID-19) vaccine, at a vaccination center in Karachi, Pakistan April 28, 2021. REUTERS/Akhtar Soomro

A man receives a dose of the coronavirus disease (COVID-19) vaccine, as others wait for their turn, at a vaccination center in Karachi, Pakistan April 28, 2021. REUTERS/Akhtar Soomro

People gather to get their coronavirus disease (COVID-19) vaccine doses, at a vaccination center in Karachi, Pakistan April 28, 2021. REUTERS/Akhtar Soomro

A resident wearing a protective mask walks past Pakistan Army soldiers on patrol to enforce coronavirus disease (COVID-19) safety protocols in Karachi, Pakistan April 28, 2021. REUTERS/Akhtar Soomro

A bird flies past a rising pink supermoon, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan, April 26, 2021. REUTERS/Akhtar Soomro

A man and child walk on a pedestal bridge with a rising pink supermoon in the background, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan, April 26, 2021. REUTERS/Akhtar Soomro

A pink supermoon rises behind the silhouetted cross at the Christian's Gora Cemetery as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan, April 26, 2021. REUTERS/Akhtar Soomro

A pink supermoon rises behind the silhouetted navigational rooster of the Frere Hall building, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan, April 26, 2021. REUTERS/Akhtar Soomro

A pink supermoon rises as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan, April 26, 2021. REUTERS/Akhtar Soomro

Army soldiers patrol the street, to enforce coronavirus safety protocols, as the spread of the coronavirus disease (COVID-19) continues in Peshawar, Pakistan April 25, 2021. REUTERS/Fayaz Aziz

People walk past an army vehicle, patrolling on the street to enforce coronavirus safety protocols, as the spread of the coronavirus disease (COVID-19) continues in Peshawar, Pakistan April 25, 2021. REUTERS/Fayaz Aziz

A man wearing a protective mask walks in front of a closed market, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 25, 2021. REUTERS/Akhtar Soomro

A police officer asks people to follow coronavirus safety protocols, as the spread of the coronavirus disease (COVID-19) continues in Peshawar, Pakistan April 25, 2021. REUTERS/Fayaz Aziz

Mohammad Ramzan, 60, a traditional goatskin water carrier also known as a mashki, ascends a flight of stairs as he delivers water in a residential building during the fasting month of Ramadan, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 23, 2021. Picture taken April 23, 2021. REUTERS/Akhtar Soomro

Mohammad Ramzan, 60, a traditional goatskin water carrier also known as a mashki, fills a bag with water from a handpump to deliver to nearby homes during the fasting month of Ramadan, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 23, 2021. Picture taken April 23, 2021. REUTERS/Akhtar Soomro

Mohammad Ramzan, a 60-year-old traditional goatskin water carrier also known as a mashki, lifts his bag as he delivers water to nearby homes during the fasting month of Ramadan, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 23, 2021. Picture taken April 23, 2021. REUTERS/Akhtar Soomro

Mohammad Ramzan, a 60-year-old traditional goatskin water carrier also known as a mashki, fills his bag to deliver water to nearby homes during the fasting month of Ramadan, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 23, 2021. Picture taken April 23, 2021. REUTERS/Akhtar Soomro

Mohammad Ramzan, a 60-year-old traditional goatskin water carrier also known as a mashki, fills a water trough for pigeons along a road on a hot and humid day during the fasting month of Ramadan, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 23, 2021. Picture taken April 23, 2021. REUTERS/Akhtar Soomro

A woman wearing a protective mask walks in front of the Max Denso Hall and Library, built in memory of Max Denso during the British colonial period, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 23, 2021. REUTERS/Akhtar Soomro

People comfort each other as they mourn the death of a relative, who was killed in an explosion at a luxury hotel, after a burial at graveyard in Quetta, Pakistan April 22, 2021. REUTERS/Naseer Ahmed

Firefighters work amid the smoke after an explosion at a luxury hotel in Quetta, Pakistan April 21, 2021. REUTERS/Naseer Ahmed

Rescue workers gather as they search for injured after an explosion at a luxury hotel in Quetta, Pakistan April 21, 2021. REUTERS/Naseer Ahmed

A plain-clothed officer searches for avidence from the site of an explosion at a luxury hotel in Quetta, Pakistan April 21, 2021. REUTERS/Naseer Ahmed

Firemen douse burning vehicles as rescue workers search for the injured after an explosion at a luxury hotel in Quetta, Pakistan April 21, 2021. REUTERS/Naseer Ahmed

A fireman douses burning vehicles after an explosion at a luxury hotel in Quetta, Pakistan April 21, 2021. REUTERS/Naseer Ahmed

A man uses a walkie talkie as he stands amid smoke from the burning vehicles after an explosion at a luxury hotel in Quetta, Pakistan April 21, 2021. REUTERS/Naseer Ahmed

A girl reacts as she and her sibling head to fetch water from a nearby tap on the outskirts of Peshawar, Pakistan June 18, 2012. Picture taken June 18, 2012. REUTERS/Fayaz Aziz

Supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) chant slogans during a protest in Lahore, Pakistan April 21, 2021.REUTERS/Mohsin Raza

Supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) chant slogans as they carry a sign during a protest in Lahore, Pakistan April 21, 2021.REUTERS/Mohsin Raza

Supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) display a pile of used teargas canisters which, according to them, were fired by the police during a protest in Lahore, Pakistan April 19, 2021. REUTERS/Stringer

Supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) who were injured during a protest, receive medical aid at a mosque in Lahore, Pakistan April 19, 2021. REUTERS/Stringer

People attend funeral of a supporter of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) who was killed during protest in Lahore, Pakistan April 19, 2021. REUTERS/Stringer

Supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) chant slogans during a protest in Lahore, Pakistan April 19, 2021. REUTERS/Stringer

A labourer sits with supplies outside a closed market during a contrywide strike by the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) in Karachi, Pakistan April 19, 2021.REUTERS/Akhtar Soomro

A cat is seen at a closed market during a contrywide strike by the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) in Karachi, Pakistan April 19, 2021.REUTERS/Akhtar Soomro

A police officer recovers from the blowback of tear gas during a protest by the supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) in Lahore, Pakistan April 18, 2021.REUTERS/Stringer

A police officer reacts while dispersing supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) during a protest in Lahore, Pakistan April 18, 2021. REUTERS/Stringer

An ambulance carrying police officers moves as supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) protest in Lahore, Pakistan April 18, 2021. REUTERS/Stringer

Supporters of the banned Islamist political party Tehrik-e-Labaik Pakistan (TLP) block a road during a protest in Lahore, Pakistan April 18, 2021.REUTERS/Stringer

A porter opens a pack of cooked rice, received from a charity, as he and others have their Iftar (breaking fast) meal, during the holy fasting month of Ramadan, as the outbreak of coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 17, 2021. REUTERS/Akhtar Soomro

Pans of cooked rice and fruits are seen ready to be distributed among people for Iftar (breaking fast), during the holy fasting month of Ramadan, as the outbreak of coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 17, 2021. REUTERS/Akhtar Soomro

People wait to have their Iftar (breaking fast) meal, during the holy fasting month of Ramadan, as the outbreak of coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 17, 2021. REUTERS/Akhtar Soomro

Volunteers fill pans with rice and fruits to distribute among people for Iftar (breaking fast) during the holy fasting month of Ramadan, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 17, 2021. REUTERS/Akhtar Soomro

Supporters of the Tehreek-e-Labaik Pakistan (TLP) Islamist political party chant slogans as they protest protest against the arrest of their leader in Lahore, Pakistan April 16, 2021. REUTERS/Stringer

Supporters of the Tehreek-e-Labaik Pakistan (TLP) Islamist political party chant slogans as they protest against the arrest of their leader in Lahore, Pakistan April 16, 2021. REUTERS/Stringer

Muslims sit along a road as they wait to attend Friday prayer during the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan, April 16, 2021. REUTERS/Akhtar Soomro

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan, April 16, 2021. REUTERS/Akhtar Soomro

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan April 16, 2021. REUTERS/Fayaz Aziz

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan, April 16, 2021. REUTERS/Fayaz Aziz

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan, April 16, 2021. REUTERS/Fayaz Aziz

A Muslim man wears a protective mask as he attends Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan, April 16, 2021. REUTERS/Fayaz Aziz

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan April 16, 2021. REUTERS/Akhtar Soomro

Muslims attend Friday prayer during the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan, April 16, 2021. REUTERS/Akhtar Soomro

Labourers sit as they wait for Iftar (breaking fast) along a wholesale market during the holy fasting month of Ramadan as the outbreak of coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 15, 2021. REUTERS/Akhtar Soomro

Mohammad Said, 65, a private security guard, offers an evening prayer after Iftar (breaking fast) along a sidewalk in front of closed shops during the holy fasting month of Ramadan as the outbreak of coronavirus disease (COVID-19) continues, in Karachi, Pakistan April 15, 2021. REUTERS/Akhtar Soomro

Flags of the European Union and France flutter in front of the French Consulate in Karachi, Pakistan April 15, 2021. REUTERS/Akhtar Soomro

A man holding his palms together praying before Iftar (breaking fast) during the fasting month of Ramadan, as the outbreak of the coronavirus disease (COVID-19) continues, at a mosque in Peshawar, Pakistan April 14, 2021. REUTERS/Fayaz Aziz