A lone bird walks past the quiet Circular Quay train station during a lockdown to curb the spread of a coronavirus disease (COVID-19) outbreak in Sydney, Australia, July 28, 2021.

Tokyo 2020 Olympics - Swimming - Women's 200m Butterfly - Semifinal 2 - Tokyo Aquatics Centre - Tokyo, Japan - July 28, 2021. Yufei Zhang of China in action.

Britain's Prime Minister Boris Johnson struggles with an umbrella during a visit to the National Memorial Arboretum at Alrewas, Staffordshire, Britain July 28, 2021. Christopher Furlong/Pool via REUTERS

Members of United Mine Workers of America (UMWA) and other labor leaders bow in prayer during a picket regarding the union's strike at Warrior Met Coal Mine, outside BlackRock's Headquarters in New York City, U.S., July 28, 2021.

Venezuelan Paralympic swimmer Jose Gregorio Montilla takes a break during a training session, as he hopes to win gold in the 50-meter breaststroke at the Tokyo Paralympic Games, in Caracas, Venezuela July 20, 2021.

Tokyo 2020 Olympics - Swimming - Men's 200m Butterfly - Medal Ceremony - Tokyo Aquatics Centre - Tokyo, Japan - July 28, 2021. Kristof Milak of Hungary poses with his gold medal on the podium.

A waxworks artist retouches one of the wax figures at the unveiling of Little Mix waxwork figures at Madame Tussauds, in London, Britain, July 28, 2021.

A pedestrian walks through an art installation of body bags as demonstrators protest against Facebook and what they claim is disinformation regarding coronavirus disease (COVID-19) on the social media giant's platform, outside Facebook headquarters in Washington, U.S., July 28, 2021.

Tokyo 2020 Olympics - Swimming - Women's 200m Individual Medley - Final - Tokyo Aquatics Centre - Tokyo, Japan - July 28, 2021. Yui Ohashi of Japan reacts.

Demonstrators march during anti-government protests, as Colombia commemorates Independence Day, in Bogota, Colombia July 20, 2021.

The reflection of an Iranian nurse is pictured at the coronavirus ICU of a hospital, as the coronavirus disease (COVID-19) cases spike, in Tehran, Iran July 28, 2021. Majid Asgaripour/WANA (West Asia News Agency) via REUTERS

An aerial view shows participants of a Tolou Keur programme working on a newly built Tolou Keur garden in Boki Diawe, within the Great Green Wall area, in Matam region, Senegal, July 10, 2021. Gardens known as Tolou Keur hold plants and trees resistant to hot, dry climates, and are planted with circular beds that allow roots to grow inwards, trapping liquids and bacteria and improving water retention and composting. Picture taken with a drone. REUTERS/Zohra Bensemra

Tokyo 2020 Olympics - Rugby Sevens - Men - Classification Round 5-8 - South Africa v Australia - Tokyo Stadium - Tokyo, Japan - July 28, 2021. Kurt-Lee Arendse of South Africa in action.

Plumes of black smoke rise from the forest around Manavgat, 75 km (45 miles) east of the resort city of Antalya, Turkey, July 28, 2021.

Peru's President Pedro Castillo walks out the Congress after his swearing-in ceremony, in Lima, Peru July 28, 2021.

The Dixie Fire, now over 200,000 acres, burns at night in Taylorsville, California, U.S., July 27, 2021.

Georgian servicemen take part in the multinational military exercise "Agile Spirit 2021" at Vaziani training area, in Georgia July 28, 2021.