Bosnian Muslims pray near the coffins of relatives during a collective funeral for bodies found in a mass grave, in Kamicani, near Prijedor, Bosnia and Herzegovina July 20, 2020.

A man poses for a photo on a large lotus leaf at a pagoda in Dong Thap province, Vietnam July 18, 2020.

German Chancellor Angela Merkel arrives for a meeting of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 20, 2020.

Mariana Martinez of Arlington, VA, imitates a statue while making a birthday visit to the West Building of the National Gallery of Art, which reopened today after months of closure due to the coronavirus disease (COVID-19) outbreak, in Washington, U.S., July 20, 2020.

Britain's Prime Minister Boris Johnson plays with toys during a visit to The Discovery School in Kent, Britain July 20, 2020. Jeremy Selwyn/Pool via REUTERS

Pro-democracy activist Joshua Wong registers as a candidate for the upcoming A Legislative Council election in Hong Kong, China July 20, 2020.

A healthcare worker wearing personal protective equipment (PPE) conducts a test to a patient while going house to house to test people for the coronavirus disease (COVID-19) in the municipality of Tlahuac, one of the highly contagious zone of Mexico City, as the coronavirus disease (COVID-19) outbreak continues in Mexico July 20, 2020.

Image used for illustrative purpose only. Vaccinators wear protective masks as they get their temperature checked, during an anti-polio campaign, in a low-income neighborhood as the spread of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan July 20, 2020.

A protester reacts to milk poured on his eyes after being tear gassed during a protest against racial inequality in Portland, Oregon, U.S., July 19, 2020.

Soccer Football - Premier League - Brighton & Hove Albion v Newcastle United - The American Express Community Stadium, Brighton, Britain - July 20, 2020 Brighton & Hove Albion's Dan Burn in action, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Pool via REUTERS/Mike Hewitt

Brother Nut, Chinese performance artist with three metallic clips sealing his mouth, poses for a picture in Shanghai, following the coronavirus disease (COVID-19) outbreak, China July 13, 2020.

A federal law enforcement officer, deployed under the Trump administration's executive order, holds pepper spray and watches protesters from behind a fence during a protest against racial inequality in Portland, Oregon, U.S., July 19, 2020.

Children walk past cattle on an embankment in a flooded area in Morigaon district, in the northeastern state of Assam, India, July 20, 2020.

A woman pulls in a fishing net on a beach at Lake Turkana, near the town of Kalokol, Turkana county, Kenya, July 4, 2020.

U.S. Secretary of State Mike Pompeo is greeted by Robert Wood Johnson, the United States' ambassador to Britain, as he arrives in London, Britain, July 20, 2020.

Visitors wearing protective face masks are reflected in a mirror wall amid the coronavirus disease (COVID-19), at an observation deck in Tokyo, Japan July 20, 2020.

A boy uses a plate to clear water entering his house as the river overflows due to incessant rainfall at a slum along the bank of Bagmati River in Kathmandu, Nepal July 20, 2020.

Shoppers who refused to wear masks shop at a Walmart store in Bradford, Pennsylvania, U.S. July 20, 2020.