A helicopter of Russia's Emergencies Ministry drops water while extinguishing a fire at a pyrotechnics warehouse in Moscow, Russia June 19, 2021. REUTERS/Shamil Zhumatov

A helicopter of Russia's Emergencies Ministry drops water while extinguishing a fire at a pyrotechnics warehouse in Moscow, Russia June 19, 2021. REUTERS/Shamil Zhumatov

Michael Martin measures the water drop in his garden well in the village of Vaclavice near the town of Hradek nad Nisou, Czech Republic, June 15, 2021. Picture taken June 15, 2021. REUTERS/David W Cerny

Michael Martin measures the water drop in his garden well in the village of Vaclavice near the town of Hradek nad Nisou, Czech Republic, June 15, 2021. Picture taken June 15, 2021. REUTERS/David W Cerny

Female sex workers receive condom boxes for free in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 15, 2021. Picture taken June 15, 2021. REUTERS/Hemanshi Kamani

A room of a female sex worker is seen in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 15, 2021. Picture taken June 15, 2021. REUTERS/Hemanshi Kamani

A female sex worker gets the hands of her customer sanitised inside her house in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 15, 2021. Picture taken June 15, 2021. REUTERS/Hemanshi Kamani

A female sex worker reacts after buying a flower garland to adorn her hair in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 15, 2021. Picture taken June 15, 2021. REUTERS/Hemanshi Kamani

A view shows houses in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 15, 2021. Picture taken June 15, 2021. REUTERS/Hemanshi Kamani

A female sex worker fills water in her containers as others wait for customers outside their houses in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 15, 2021. Picture taken June 15, 2021. REUTERS/Hemanshi Kamani

A female sex worker gives a condom to her customer inside her room in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 15, 2021. Picture taken June 15, 2021. REUTERS/Hemanshi Kamani

People shop at a crowded roadside vegetable market after authorities eased coronavirus restrictions, following a drop in COVID-19 cases in Ahmedabad, India, June 15, 2021. REUTERS/Amit Dave

A female sex worker looks on as she waits for customers at the door of her house in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 14, 2021. Picture taken June 14, 2021. REUTERS/Hemanshi Kamani TPX IMAGES OF THE DAY

Female sex workers speak with their customers outside their houses in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 14, 2021. Picture taken June 14, 2021. REUTERS/Hemanshi Kamani

A female sex worker gets ready inside her room in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 14, 2021. Picture taken June 14, 2021. REUTERS/Hemanshi Kamani

A female sex worker is reflected in a mirror as she prepares tea inside her house in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 14, 2021. Picture taken June 14, 2021. REUTERS/Hemanshi Kamani

Men wait outside the house of female sex workers in a red light area after authorities eased coronavirus restrictions, following a drop in the coronavirus disease (COVID-19) cases, in Sangli in the western state of Maharashtra, India, June 14, 2021. Picture taken June 14, 2021. REUTERS/Hemanshi Kamani

A firefighter helicopter demonstrates a water drop as officials announce a 180-day Quick Reaction Force program designed to help battle wildfires, during a media event at Joint Forces Training Base Los Alamitos in Los Alamitos, California, U.S., June 14, 2021. REUTERS/Mike Blake

A man prays outside a temple after authorities ordered the opening of religious places with no devotees to be allowed inside, following a drop in Delhi's coronavirus disease (COVID-19) cases, in New Delhi, India, June 14, 2021. REUTERS/Adnan Abidi

A man prays outside a temple after authorities ordered the opening of religious places with no devotees to be allowed inside, following a drop in Delhi's coronavirus disease (COVID-19) cases, in New Delhi, India, June 14, 2021. REUTERS/Adnan Abidi

Travellers make their way to the gates at Detroit Metropolitan Wayne County Airport, as domestic travel picks up across the United States as the coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Delta Airlines passenger jets are docked at Detroit Metropolitan Wayne County Airport, as domestic travel picks up across the United States as the coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Delta Airlines passenger jets taxi on a runway at Detroit Metropolitan Wayne County Airport, as domestic travel picks up across the United States as the coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers make their way to the gates at Detroit Metropolitan Wayne County Airport, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers wait in line at Detroit Metropolitan Wayne County Airport, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers make their way to the gates at Detroit Metropolitan Wayne County Airport, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers line up to enter a Transportation Safety Administration (TSA) checkpoint, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, at Detroit Metropolitan Wayne County Airport in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers line up to enter a Transportation Safety Administration (TSA) checkpoint, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, at Detroit Metropolitan Wayne County Airport in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers make their way to their gates at Detroit Metropolitan Wayne County Airport, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S., June 12, 2021. REUTERS/Seth Herald

A Transportation Safety Administration agent (TSA) stands near a security checkpoint, as domestic travel picks up across the United States as the coronavirus disease (COVID-19) case numbers drop, at Detroit Metropolitan Wayne County Airport in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers make their way to their gates at Detroit Metropolitan Wayne County Airport, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, in Detroit, Michigan, U.S., June 12, 2021. REUTERS/Seth Herald

Travellers wait in line with their baggage in at Detroit Metropolitan Wayne County Airport in Detroit, Michigan, U.S. June 12, 2021. The Transportation Safety Administration (TSA) projects that 131 of the nations airports will face shortages in staffing this month as domestic travel picks up across the United States as the coronavirus disease (COVID-19) case numbers drop. REUTERS/Seth Herald

Travellers line up to enter a Transportation Safety Administration (TSA) checkpoint, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, at Detroit Metropolitan Wayne County Airport in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers line up to enter a Transportation Safety Administration (TSA) checkpoint, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, at Detroit Metropolitan Wayne County Airport in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Travellers line up to enter a Transportation Safety Administration (TSA) checkpoint, as domestic travel picks up as coronavirus disease (COVID-19) case numbers drop, at Detroit Metropolitan Wayne County Airport in Detroit, Michigan, U.S. June 12, 2021. REUTERS/Seth Herald

Cricket - Second Test - England v New Zealand - Edgbaston Stadium, Birmingham, Britain - June 11, 2021 England's Olly Stone reacts after Joe Root drops a catch off New Zealand's Will Young Action Images via Reuters/Peter Cziborra

Cricket - Second Test - England v New Zealand - Edgbaston Stadium, Birmingham, Britain - June 11, 2021 England's Olly Stone reacts after Joe Root drops a catch off New Zealand's Will Young Action Images via Reuters/Peter Cziborra

Members of the Selamati family lay flowers at the fatal crime scene where a man driving a pickup truck jumped the curb and ran over a Muslim family in what police say was a deliberately targeted anti-Islamic hate crime, in London, Ontario, Canada June 7, 2021. REUTERS/Carlos Osorio REFILE - ADDING DROPPED WORD

Rugby Union - Premiership - Northampton Saints v Exeter Chiefs - Franklin's Gardens, Northampton, Britain - June 6, 2021 Northampton Saints’ Dan Biggar kicks a drop goal

Rugby Union - Premiership - Northampton Saints v Exeter Chiefs - Franklin's Gardens, Northampton, Britain - June 6, 2021 Northampton Saints’ Dan Biggar kicks a drop goal Action Images/Peter Cziborra

An environmental activist stands on a boat as he drops artificial reefs into the sea to improve the marine ecosystems, in Monastir, Tunisia June 4, 2021. Picture taken June 4, 2021. REUTERS/Jihed Abidellaoui

An environmental activist stands on a boat as he drops artificial reefs into the sea to improve the marine ecosystems, in Monastir, Tunisia June 4, 2021. Picture taken June 4, 2021. REUTERS/Jihed Abidellaoui

Tear gas grenades are dropped by an Israeli drone to disperse Palestinian demonstrators during a protest against Israeli settlements in Beita, in the Israeli-occupied West Bank June 4, 2021. REUTERS/Raneen Sawafta

An Israeli drone drops tear gas grenades to disperse Palestinian demonstrators during a protest against Israeli settlements in Beita, in the Israeli-occupied West Bank June 4, 2021. REUTERS/Raneen Sawafta

German Chancellor Angela Merkel drops a pen as she leaves after addressing the media following a meeting with East German state prime ministers at the Chancellery in Berlin, Germany June 2, 2021. REUTERS/Annegret Hilse/Pool

German Chancellor Angela Merkel drops a pen as she leaves after addressing the media following a meeting with East German state prime ministers at the Chancellery in Berlin, Germany June 2, 2021. REUTERS/Annegret Hilse/Pool

Tennis - French Open - Roland Garros, Paris, France - June 2, 2021 Greece's Stefanos Tsitsipas drops his racket during his second round match against Spain's Pedro Martinez REUTERS/Gonzalo Fuentes

Tennis - French Open - Roland Garros, Paris, France - June 2, 2021 Greece's Stefanos Tsitsipas drops his racket during his second round match against Spain's Pedro Martinez REUTERS/Gonzalo Fuentes

Tennis - French Open - Roland Garros, Paris, France - June 2, 2021 Greece's Stefanos Tsitsipas drops his racket during his second round match against Spain's Pedro Martinez REUTERS/Gonzalo Fuentes

A worker drops soil from the site where authorities are excavating a clandestine cemetery discovered at the house of a former police officer and containing many bodies, most of them believed to be women, in Chalchuapa, El Salvador May 24, 2021. REUTERS/Jose Cabezas

A worker drops soil from the site where authorities are excavating a clandestine cemetery discovered at the house of a former police officer and containing many bodies, most of them believed to be women, in Chalchuapa, El Salvador May 24, 2021. REUTERS/Jose Cabezas

Ice Hockey - IIHF World Ice Hockey Championship 2021 - Group A - Denmark v Switzerland - Olympic Sports Centre, Riga, Latvia - May 23, 2021 General view of the puck drop at the start of the game REUTERS/Vasily Fedosenko

Rugby League - Super League - Salford Red Devils v Wigan Warriors - AJ Bell Stadium, Eccles, Britain - May 22, 2021 Salford Red Devils players react after Wigan Warriors Jackson Hastings scores a drop goal Action Images/Jason Cairnduff

Rugby League - Super League - Salford Red Devils v Wigan Warriors - AJ Bell Stadium, Eccles, Britain - May 22, 2021 Wigan Warriors Jackson Hastings celebrates scoring a drop goal Action Images/Jason Cairnduff

A robot created by Spanish companies br5 and Mimcook drops shrimp into a paella during a demonstration at a warehouse in San Fernando de Henares, outside Madrid, Spain, May 20, 2021. Picture taken May 20, 2021. REUTERS/Susana Vera

Petals are dropped on a coffin during an exercise for coronavirus disease (COVID-19) burials, after deaths have surpassed 70,000 amid a strong second wave of the pandemic and a slow vaccination process, in Buenos Aires, Argentina May 17, 2021. Picture taken May 17, 2021. REUTERS/Agustin Marcarian

Ghenwa, 21, a trainee flight attendant and Assala, 21, an architecture student, dance at a techno music party in Damascus, Syria, May 14, 2021. The freedom to travel was the main reason Ghenwa decided to train as an air hostess, having dropped out of university where she was studying architecture. "I'm Syrian and I can't travel at the moment except through this opportunity," said Ghenwa. "It's the only opportunity that makes me feel I can move faster... to feel the freedom of borders." REUTERS/Yamam al Shaar SEARCH "SHAAR YOUTH" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

A Fulton County absentee ballot drop box is seen in Atlanta, Georgia, U.S., May 12, 2021. Picture taken May 12, 2021. REUTERS/Linda So

A man drops a bag of Dangote cement while offloading a truck in Abuja, Nigeria May 11, 2021. Picture taken May 11, 2021. REUTERS/Afolabi Sotunde

Hellen Nanez, who lost 13 relatives to the coronavirus disease (COVID-19) and whose father is being treated for COVID-19 in the Intensive Care Unit, looks at her daughter Luciana after dropping her off at a relative's home so she can buy her father's medicine and shop ingredients to make handmade soap, in Pisco, Peru, May 8, 2021. Picture taken May 8, 2021. REUTERS/Alessandro Cinque